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diff --git a/SURVYNG_AND_LEVELLING__by_N.N.BASAK/chap1_Introduction.ipynb b/SURVYNG_AND_LEVELLING__by_N.N.BASAK/chap1_Introduction.ipynb new file mode 100644 index 00000000..a5f2c912 --- /dev/null +++ b/SURVYNG_AND_LEVELLING__by_N.N.BASAK/chap1_Introduction.ipynb @@ -0,0 +1,1467 @@ +{ + "cells": [ + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "\n", + "# Chapter 1: Introduction\n" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "\n", + "\n", + "### Problem1, pg 25" + ] + }, + { + "cell_type": "code", + "execution_count": 24, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "true length= 327.4905\n" + ] + } + ], + "source": [ + "\n", + "\n", + "l=20; #chain length\n", + "e=0.03; #error\n", + "l1=l+e; #L'\n", + "ml=327; #measured length\n", + "truel=(l1/l)*(ml) #true length\n", + "print (\"true length=\",truel)" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "\n", + "\n", + "### Problem2, pg 25" + ] + }, + { + "cell_type": "code", + "execution_count": 25, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "amount of error= 0.20083682008368697\n" + ] + } + ], + "source": [ + "\n", + "\n", + "l1=20; #chain 1 length\n", + "e=0.05; #error\n", + "l11=l1+e; \n", + "ml1=1200; #measured lenght\n", + "tl=(l11/l1)*ml1; #true lenght of line\n", + "\n", + "l2=30; #chain 2 length\n", + "ml2=1195; #measured length\n", + "\n", + "l21=(tl/ml2)*l2; \n", + "ae=l21-l2; #amount of error\n", + "print('amount of error=',ae)\n" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "\n", + "\n", + "### Problem3, pg 25" + ] + }, + { + "cell_type": "code", + "execution_count": 26, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "true length1= 901.35\n", + "true length 2= 678.3750000000001\n", + "true distance= 1579.7250000000001\n" + ] + } + ], + "source": [ + "\n", + "\n", + "l1=20\n", + "e=(0.06/2) #consider mean elongation\n", + "l11=l1+e;\n", + "ml=900;\n", + "tl=(l11/l1)*ml;\n", + "print('true length1=',tl)\n", + "l2=20;\n", + "e2=(0.06+0.14)/2;\n", + "l21=20+e2;\n", + "ml2=1575-ml;\n", + "\n", + "tl2=(l21/l2)*ml2;\n", + "print('true length 2=',tl2)\n", + "td=tl+tl2;\n", + "print('true distance=',td)\n" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "\n", + "\n", + "### Problem4, pg26" + ] + }, + { + "cell_type": "code", + "execution_count": 27, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "distance between stations on map= 35.0 centimeters\n", + "true distance on ground = 1750.0 meters\n" + ] + } + ], + "source": [ + "\n", + "\n", + "s=100;\n", + "dsm=3500;\n", + "adsm=dsm/s;\n", + "\n", + "print('distance between stations on map=',adsm,'centimeters')\n", + "\n", + "actuals=50;\n", + "td=adsm*actuals;\n", + "\n", + "print('true distance on ground =',td,'meters')\n" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "\n", + "\n", + "### Problem 5, pg 26" + ] + }, + { + "cell_type": "code", + "execution_count": 28, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "actual area present= 132.01840894148586 square cm\n", + "true area= 212286.9217619987 square meters\n" + ] + } + ], + "source": [ + "\n", + "\n", + "present=19.5\n", + "actual=20;\n", + "cm1=actual/present;\n", + "cm12=(actual*actual)/(present*present);\n", + "pm=125.5;\n", + "apm=pm*cm12;\n", + "print('actual area present=',apm,'square cm');\n", + "\n", + "cm=40;\n", + "cm2=cm*cm;\n", + "\n", + "area=cm2*apm;\n", + "scale=(20.05*20.05)/(20*20);\n", + "ta=scale*area;\n", + "print('true area=',ta,'square meters');\n" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "\n", + "\n", + "### Problem 6, pg 27" + ] + }, + { + "cell_type": "code", + "execution_count": 29, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + " for n=1\n", + "the temperature correction is 0.00396 meters\n", + "the pull corretion is 0.002380952380952381 meters\n", + "the sag correction is -0.0026680499999999995 meters\n", + "the total correction is 0.0036729023809523816 meters\n", + "the true length is 780.0954954619046\n", + " for n=2\n", + "the temperature correction is 0.00396 meters\n", + "the pull corretion is 0.002380952380952381 meters\n", + "the sag correction is -0.0006670124999999999 meters\n", + "the total correction is 0.005673939880952382 meters\n", + "the true length is 780.1475224369049\n" + ] + } + ], + "source": [ + "\n", + "\n", + "from __future__ import division\n", + "\n", + "L=30;\n", + "t0=20;\n", + "p0=10;\n", + "pm=15;\n", + "tm=32;\n", + "a=0.03;\n", + "al=11/(1000000);\n", + "E=2.1*(1000000);\n", + "w=0.693;\n", + "ml=780;\n", + "n=1;\n", + "print(' for n=1')\n", + "ct=al*L*(tm-t0);\n", + "print('the temperature correction is',ct,'meters');\n", + "\n", + "cp=(pm-p0)*L/(a*E);\n", + "print('the pull corretion is ',cp,' meters');\n", + "\n", + "cs=-L*w*w/(24*pm*pm*n*n);\n", + "print('the sag correction is ',cs,'meters');\n", + "\n", + "e=ct+cp+cs;\n", + "print('the total correction is ',e,'meters');\n", + "\n", + "l1=L+e;\n", + "\n", + "truelength=(l1/L)*ml;\n", + "print('the true length is ',truelength);\n", + "\n", + "n=2;\n", + "\n", + "print(' for n=2')\n", + "ct=al*L*(tm-t0);\n", + "print('the temperature correction is',ct,'meters');\n", + "\n", + "cp=(pm-p0)*L/(a*E);\n", + "print('the pull corretion is ',cp,' meters');\n", + "\n", + "cs=-L*w*w/(24*pm*pm*n*n);\n", + "print('the sag correction is ',cs,'meters');\n", + "\n", + "e=ct+cp+cs;\n", + "print('the total correction is ',e,'meters');\n", + "\n", + "l1=L+e;\n", + "\n", + "truelength=(l1/L)*ml;\n", + "print('the true length is ',truelength);\n", + "\n", + "\n", + "\n", + "\n" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "\n", + "\n", + "### Problem 7, pg 28" + ] + }, + { + "cell_type": "code", + "execution_count": 30, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "the temperature correction is 0.0021999999999999997 meters\n", + "the pull corretion is -0.002380952380952381 meters\n", + "the sag correction is -0.0013333333333333335 meters\n", + "the total correction is -0.001514285714285715 meters\n", + "the horizontal distance is 19.998485714285714\n" + ] + } + ], + "source": [ + "\n", + "from __future__ import division\n", + "\n", + "L=20;\n", + "t0=20;\n", + "p0=15;\n", + "p=10;\n", + "tm=30;\n", + "a=0.02;\n", + "al=11/(1000000);\n", + "E=2.1*(1000000);\n", + "w=0.4;\n", + "\n", + "n=1;\n", + "ct=al*L*(tm-t0);\n", + "print('the temperature correction is',ct,'meters');\n", + "\n", + "cp=(p-p0)*L/(a*E);\n", + "print('the pull corretion is ',cp,' meters');\n", + "\n", + "cs=-L*w*w/(24*p*p*n*n);\n", + "print('the sag correction is ',cs,'meters');\n", + "\n", + "e=ct+cp+cs;\n", + "print('the total correction is ',e,'meters');\n", + "\n", + "hd=L+e;\n", + "\n", + "print('the horizontal distance is ',hd);\n", + "\n" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "\n", + "\n", + "### Problem 8, pg 29" + ] + }, + { + "cell_type": "code", + "execution_count": 31, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "for p=5 case\n", + "the temperature correction is 0.00165 meters\n", + "the pull corretion is 0.0 meters\n", + "the sag correction is -0.02178 meters\n", + "the total correction is -0.020130000000000002 meters\n", + "the horizontal distance is 29.97987\n", + "for p=11 case\n", + "the temperature correction is 0.00165 meters\n", + "the pull corretion is 0.004285714285714286 meters\n", + "the sag correction is -0.0045000000000000005 meters\n", + "the total correction is 0.001435714285714285 meters\n", + "the horizontal distance is 30.001435714285716\n" + ] + } + ], + "source": [ + "\n", + "from __future__ import division\n", + "\n", + "L=30;\n", + "t0=20;\n", + "p0=5;\n", + "tm=25;\n", + "a=0.02;\n", + "al=11/(1000000);\n", + "E=2.1*(1000000);\n", + "float(E);\n", + "float(al);\n", + "w1=22;\n", + "w=0.66;\n", + "n=1;\n", + "\n", + "p=5;\n", + "print('for p=5 case');\n", + "\n", + "ct=al*L*(tm-t0);\n", + "float(ct);\n", + "print('the temperature correction is',ct,'meters');\n", + "\n", + "cp=(p-p0)*L/(a*E);\n", + "print('the pull corretion is ',cp,' meters');\n", + "\n", + "cs=-L*w*w/(24*p*p*n*n);\n", + "print('the sag correction is ',cs,'meters');\n", + "\n", + "e=ct+cp+cs;\n", + "print('the total correction is ',e,'meters');\n", + "\n", + "hd=L+e;\n", + "\n", + "print('the horizontal distance is ',hd);\n", + "\n", + "p=11;\n", + "print('for p=11 case');\n", + "\n", + "ct=al*L*(tm-t0);\n", + "print('the temperature correction is',ct,'meters');\n", + "\n", + "cp=(p-p0)*L/(a*E);\n", + "print('the pull corretion is ',cp,' meters');\n", + "\n", + "cs=-L*w*w/(24*p*p*n*n);\n", + "print('the sag correction is ',cs,'meters');\n", + "\n", + "e=ct+cp+cs;\n", + "print('the total correction is ',e,'meters');\n", + "\n", + "hd=L+e;\n", + "\n", + "print('the horizontal distance is ',hd);\n" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "\n", + "\n", + "### Problem 9, pg 30" + ] + }, + { + "cell_type": "code", + "execution_count": 32, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "the temperature correction is 0.00264 meters\n", + "the pull corretion is 0.003492063492063492 meters\n", + "the sag correction is -0.001171875 meters\n", + "the total correction is 0.004960188492063492 meters\n", + "the true length is 680.1686464087301\n" + ] + } + ], + "source": [ + "from __future__ import division\n", + "\n", + "L=20;\n", + "t0=20;\n", + "p0=5;\n", + "pm=16;\n", + "tm=32;\n", + "a=0.03;\n", + "al=11/(1000000);\n", + "E=2.1*(1000000);\n", + "w=0.6;\n", + "ml=680;\n", + "n=1;\n", + "\n", + "\n", + "ct=al*L*(tm-t0);\n", + "print('the temperature correction is',ct,'meters');\n", + "\n", + "cp=(pm-p0)*L/(a*E);\n", + "print('the pull corretion is ',cp,' meters');\n", + "\n", + "cs=-L*w*w/(24*pm*pm*n*n);\n", + "print('the sag correction is ',cs,'meters');\n", + "\n", + "e=ct+cp+cs;\n", + "print('the total correction is ',e,'meters');\n", + "\n", + "l1=L+e;\n", + "\n", + "truelength=(l1/L)*ml;\n", + "print('the true length is ',truelength);" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "\n", + "\n", + "### Problem 10, pg 31" + ] + }, + { + "cell_type": "code", + "execution_count": 33, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "the temperature correction is 0.0061600000000000005 meters\n", + "the pull corretion is -0.0033333333333333335 meters\n", + "the sag correction is -0.008979994074074075 meters\n", + "the total correction is -0.006153327407407408 meters\n", + "the correctt distance is 679.8505620486773\n" + ] + } + ], + "source": [ + "\n", + "\n", + "\n", + "L=28;\n", + "t0=20;\n", + "p0=10;\n", + "pm=5;\n", + "tm=40;\n", + "a=0.02;\n", + "al=11/(1000000);\n", + "E=2.1*(1000000);\n", + "w1=470;\n", + "ml=680;\n", + "n=1;\n", + "\n", + "w=(470*28)/30;\n", + "w=w/1000;\n", + "\n", + "ct=al*L*(tm-t0);\n", + "print('the temperature correction is',ct,'meters');\n", + "\n", + "cp=(pm-p0)*L/(a*E);\n", + "print('the pull corretion is ',cp,' meters');\n", + "\n", + "cs=-L*w*w/(24*pm*pm*n*n);\n", + "print('the sag correction is ',cs,'meters');\n", + "\n", + "e=ct+cp+cs;\n", + "print('the total correction is ',e,'meters');\n", + "\n", + "l1=L+e;\n", + "\n", + "dis=(l1/L)*ml;\n", + "print('the correctt distance is ',dis);\n", + "\n" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "\n", + "\n", + "### Problem 11, pg32" + ] + }, + { + "cell_type": "code", + "execution_count": 34, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "from fig p.1.1\n", + "87\n", + " the value of EF is 135.34797293685585 meters\n", + " the value of DF is 103.68256255569626 meters\n", + " the value of EG is 205.85953773426738 meters\n" + ] + } + ], + "source": [ + "#ch-1, problems on obstacles in chaining, page-32,pb-1\n", + "\n", + "from __future__ import division\n", + "\n", + "import math;\n", + "\n", + "print('from fig p.1.1')\n", + "DE=87;\n", + "print(DE);\n", + "EF=float(87/(math.cos(50*(math.pi/180))))\n", + "\n", + "DF=87*(math.tan(50*(math.pi/180)))\n", + "\n", + "EG=87/(math.cos(65*(math.pi/180)))\n", + "\n", + "\n", + "print(' the value of EF is ',EF,'meters');\n", + "\n", + "print(' the value of DF is ',DF,'meters');\n", + "\n", + "print(' the value of EG is ',EG,'meters'); \n" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "\n", + "\n", + "### Problem 12, pg 33" + ] + }, + { + "cell_type": "code", + "execution_count": 35, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "width of river is 227.23577649516116 meters\n" + ] + } + ], + "source": [ + "#ch-1 page-33, pb-2\n", + "import math\n", + "\n", + "\n", + "x=(380.0285/2.5754);\n", + "\n", + "PA=x;\n", + "AQ=367-x;\n", + "al=180-(36.45+86.55);\n", + "bt=86.35-40-35;\n", + "\n", + "TA=AQ*math.tan(46*(math.pi/180));\n", + "\n", + "print('width of river is ',TA,'meters');\n", + "\n", + "\n", + "\n", + "\n", + "\n", + "\n", + "\n", + "\n" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "### Problem 13, pg 34" + ] + }, + { + "cell_type": "code", + "execution_count": 36, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "width of river is 316.63370603933663 meters\n" + ] + } + ], + "source": [ + "# cha-1 page-34 pb-3\n", + "\n", + "from __future__ import division\n", + "\n", + "import math\n", + "\n", + "x=(849.224)/2.6196\n", + "\n", + "\n", + "\n", + "PA=x;\n", + "AQ=517-x;\n", + "al=78-33.67;\n", + "bt=180-(43.333+78);\n", + "\n", + "TA=AQ*math.tan(58.66*(math.pi/180));\n", + "\n", + "print('width of river is ',TA,'meters');\n" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "\n", + "\n", + "### Problem 14, pg35" + ] + }, + { + "cell_type": "code", + "execution_count": 37, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "chainage of C is 277.08203230275507 meters\n" + ] + } + ], + "source": [ + "# cha-1 page-34,35 pb-4\n", + "\n", + "from __future__ import division\n", + "\n", + "import math\n", + "\n", + "al=288.5-(48.5+180);\n", + "bt=90-48.5;\n", + "BAC=360-41.5;\n", + "\n", + "AC=40*(math.tan(60*(math.pi/180)));\n", + "\n", + "A=207.8;\n", + "\n", + "C=A+AC;\n", + "\n", + "print('chainage of C is',C,'meters');\n", + " \n" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "\n", + "### Problem 15, pg36" + ] + }, + { + "cell_type": "code", + "execution_count": 38, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "width of the river is 74.99999999999999 meters\n" + ] + } + ], + "source": [ + "\n", + "\n", + "import math\n", + "BB=287.25;\n", + "MC=62.25;\n", + "al=(BB-180)-MC;\n", + "BM=75;\n", + "BC=BM*(math.tan(45*(math.pi/180)))\n", + "\n", + "print('width of the river is ',BC,'meters')\n" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "\n", + "### Problem 16, pg 36" + ] + }, + { + "cell_type": "code", + "execution_count": 39, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "AB= 241.8677324489565\n" + ] + } + ], + "source": [ + "#CH-1 PAGE-36 PB-6;\n", + "\n", + "from __future__ import division\n", + "import math\n", + "\n", + "\n", + "AC=250;\n", + "AD=300;\n", + "DB=150;\n", + "BC=100;\n", + "DC=DB+BC;\n", + "\n", + "cosal=(AD*AD+DC*DC-(AC*AC))/(2*AD*DC);\n", + "\n", + "AB=math.sqrt((AD*AD+DB*DB)-2*(AD*DB*cosal));\n", + "\n", + "print('AB=',AB);\n" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "\n", + "\n", + "### Problem 17, pg37" + ] + }, + { + "cell_type": "code", + "execution_count": 40, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "al 63.43494882292201\n", + "bt= 26.56505117707799\n", + "k= 0.5\n", + "chinage of c is 375.5 meters\n" + ] + } + ], + "source": [ + "# ch-1 page-36,37 pb-7\n", + "\n", + "from __future__ import division\n", + "\n", + "\n", + "import math\n", + "\n", + "BE=50;\n", + "AB=25;\n", + "AEC=157.5-67.5;\n", + "\n", + "al=math.atan2(BE,AB);\n", + "al=al*(180/math.pi);\n", + "\n", + "print('al',al)\n", + "\n", + "bt=90-al;\n", + "print('bt=',bt);\n", + "k=(math.tan(bt*math.pi/180))\n", + "\n", + "print('k=',k)\n", + "BC=BE/k;\n", + "C=275.5+BC;\n", + "print('chinage of c is',C,'meters')\n" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "\n", + "\n", + "### Problem 18, pg38" + ] + }, + { + "cell_type": "code", + "execution_count": 41, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "measured length is 79.71623152917896 meters\n", + "true length is 79.61658623976749 meters\n" + ] + } + ], + "source": [ + "#ch-1 page -37,38 pb-1\n", + "\n", + "from __future__ import division\n", + "\n", + "import math\n", + "\n", + "\n", + "a=17.5;\n", + "b=19.3;\n", + "c=17.8;\n", + "d=13.6;\n", + "e=12.9;\n", + "\n", + "da=2.35;\n", + "db=4.20;\n", + "dc=2.95;\n", + "dd=1.65;\n", + "de=3.25;\n", + "\n", + "AB=math.sqrt((a*a)-(da*da));\n", + "BC=math.sqrt((b*b)-(db*db));\n", + "CD=math.sqrt((c*c)-(dc*dc));\n", + "DE=math.sqrt((d*d)-(dd*dd));\n", + "EF=math.sqrt((e*e)-(de*de));\n", + "\n", + "total=AB+BC+CD+DE+EF;\n", + "print('measured length is ',total,'meters');\n", + "\n", + "e=0.025;\n", + "l=20;\n", + "l1=l-e;\n", + "ml=total;\n", + "\n", + "tl=(l1/l)*ml;\n", + "\n", + "print('true length is ',tl,'meters');\n" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "\n", + "\n", + "### Problem 19, pg 38" + ] + }, + { + "cell_type": "code", + "execution_count": 42, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "measured length is 531.2592044589876 meters\n", + "true length is 532.587352470135 meters\n" + ] + } + ], + "source": [ + "#ch-1 page -38 pb-2\n", + "\n", + "from __future__ import division\n", + "\n", + "import math\n", + "\n", + "ab=550;\n", + "AB=ab*(math.cos(15*(math.pi/180)));\n", + "\n", + "l=20;\n", + "e=0.05;\n", + "l1=l+e;\n", + "ml=AB;\n", + "print('measured length is ',ml,'meters');\n", + "\n", + "tl=(l1/l)*ml;\n", + "\n", + "print('true length is ',tl,'meters');\n" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "\n", + "\n", + "### Problem 20, pg39" + ] + }, + { + "cell_type": "code", + "execution_count": 43, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "horizontal distance 1 is 275.74617084341827 meters\n", + "horizontal distance 2 is 278.61041325879694 meters\n", + "horizontal distance 3 is 279.8856909525744 meters\n" + ] + } + ], + "source": [ + "#ch-1 page -38,39 pb-3\n", + "\n", + "from __future__ import division\n", + "\n", + "import math\n", + "\n", + "ab=280;\n", + "\n", + "AB1=ab*(math.cos(10*(math.pi/180)));\n", + "\n", + "print('horizontal distance 1 is ',AB1,'meters');\n", + "\n", + "cosal=(10/(math.sqrt(101)));\n", + "\n", + "AB2=ab*cosal;\n", + "\n", + "print('horizontal distance 2 is ',AB2,'meters');\n", + "\n", + "bb=8;\n", + "AB3=math.sqrt(ab*ab-(bb*bb));\n", + "\n", + "print('horizontal distance 3 is ',AB3,'meters');\n" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "\n", + "\n", + "### Problem 21, pg40" + ] + }, + { + "cell_type": "code", + "execution_count": 44, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "measured length is 101.35201880331583 meters\n", + "true horizontal distance is 101.26755878764641 meters\n" + ] + } + ], + "source": [ + "#ch-1 page -39,40 pb-4\n", + "\n", + "from __future__ import division\n", + "\n", + "import math\n", + "\n", + "a=28.7;\n", + "b=23.4;\n", + "c=20.9;\n", + "d=29.6;\n", + "\n", + "ag=5;\n", + "bg=7;\n", + "cg=10;\n", + "dg=12;\n", + "\n", + "AB=a*(math.cos(ag*(math.pi/180)));\n", + "\n", + "BC=b*(math.cos(bg*(math.pi/180)));\n", + "\n", + "CD=c*(math.cos(cg*(math.pi/180)));\n", + "\n", + "DE=d*(math.cos(dg*(math.pi/180)));\n", + "\n", + "total=AB+BC+CD+DE;\n", + "\n", + "ml=total;\n", + "\n", + "print('measured length is ',ml,'meters');\n", + "\n", + "l=30;\n", + "e=0.025;\n", + "l1=l-e;\n", + "\n", + "tl=(l1/l)*ml;\n", + "\n", + "print('true horizontal distance is ',tl,'meters');\n" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "\n", + "\n", + "### Problem 22, pg 40" + ] + }, + { + "cell_type": "code", + "execution_count": 45, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "theta1= 30.009552668941378\n", + "theta2= 106 degrees 32.534711618974654 minutes\n" + ] + } + ], + "source": [ + "#ch-1 page -40 pb-1\n", + "\n", + "from __future__ import division\n", + "\n", + "import math\n", + "\n", + "\n", + "a=23;\n", + "b=16.5;\n", + "c=12;\n", + "\n", + "\n", + "t1=math.acos((a*a+b*b-(c*c))/(2*a*b));\n", + "t1=t1*(180/math.pi);\n", + "\n", + "print('theta1=',t1);\n", + "\n", + "t2=math.acos((c*c+b*b-(a*a))/(2*c*b));\n", + "t2=t2*(180/math.pi);\n", + "dg=int(t2)\n", + "mi=t2-int(t2)\n", + "mi=(mi*60);\n", + "print('theta2=',dg,'degrees',mi,'minutes');\n" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "\n", + "\n", + "### Problem 23, pg 41" + ] + }, + { + "cell_type": "code", + "execution_count": 46, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "theta1= 5 degrees 46.94403663966165 minutes\n", + "theta2= 165 degrees 26.421472313304548 minutes\n" + ] + } + ], + "source": [ + "#ch-1 page -40,41 pb-2\n", + "\n", + "from __future__ import division\n", + "\n", + "import math\n", + "\n", + "\n", + "a=257;\n", + "b=156;\n", + "c=103;\n", + "\n", + "\n", + "t1=math.acos((a*a+b*b-(c*c))/(2*a*b));\n", + "t1=t1*(180/math.pi);\n", + "\n", + "dg1=int(t1)\n", + "mi1=t1-int(t1)\n", + "mi1=(mi1*60);\n", + "print('theta1=',dg1,'degrees',mi1,'minutes');\n", + "\n", + "\n", + "t2=math.acos((c*c+b*b-(a*a))/(2*c*b));\n", + "t2=t2*(180/math.pi);\n", + "dg=int(t2)\n", + "mi=t2-int(t2)\n", + "mi=(mi*60);\n", + "print('theta2=',dg,'degrees',mi,'minutes');\n" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "\n", + "\n", + "### Problem 24, pg 42" + ] + }, + { + "cell_type": "code", + "execution_count": 47, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "RF is 0.025\n", + "length of scale is 15.000000000000002 meters\n" + ] + } + ], + "source": [ + "#CH-1 PAGE-42 PB-1;\n", + "\n", + "from __future__ import division\n", + "import math\n", + "\n", + "\n", + "sc=100;\n", + "a=2.5;\n", + "m=6;\n", + "\n", + "RF=(a/sc);\n", + "\n", + "print('RF is ',RF);\n", + "\n", + "length=RF*m*sc;\n", + "\n", + "print('length of scale is ',length,'meters');\n" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "\n", + "\n", + "### Problem 25, pg 42" + ] + }, + { + "cell_type": "code", + "execution_count": 48, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "RF= 0.0002\n", + "length of final scale is 700.0\n" + ] + } + ], + "source": [ + "#CH-1 PAGE-42,43 PB-2;\n", + "\n", + "from __future__ import division\n", + "import math\n", + "\n", + "\n", + "sc=100;\n", + "area=93750;\n", + "l=6.0;\n", + "b=6.25;\n", + "\n", + "cm2=(area)/(l*b);\n", + "\n", + "cm=math.sqrt(cm2);\n", + "RF=1/(sc*cm);\n", + "\n", + "print('RF=',RF);\n", + "\n", + "leng=14;\n", + "leng=leng*cm;\n", + "\n", + "print('length of final scale is ',leng);\n", + "\n", + "\n", + "\n", + "\n" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "### Problem 26, pg 43" + ] + }, + { + "cell_type": "code", + "execution_count": 49, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "RF= 0.00025\n", + "length of scale is 600.0 meters\n" + ] + } + ], + "source": [ + "#CH-1 PAGE-43 PB-3;\n", + "\n", + "from __future__ import division\n", + "import math\n", + "\n", + "l=1.2;\n", + "al=30;\n", + "al=al/100;\n", + "sc=1000;\n", + "\n", + "\n", + "RF=(al)/(sc*l);\n", + "print('RF=',RF);\n", + "\n", + "\n", + "cm1=(1/RF)/(100);\n", + "\n", + "lsc=15;\n", + "cm15=lsc*cm1;\n", + "\n", + "print('length of scale is ',cm15,'meters');\n" + ] + }, + { + "cell_type": "markdown", + "metadata": {}, + "source": [ + "\n", + "\n", + "### Problem 27, pg44" + ] + }, + { + "cell_type": "code", + "execution_count": 50, + "metadata": { + "collapsed": false + }, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "1cm= 30.0\n", + "RF= 0.03333333333333333\n", + "length of scale is 13.333333333333334 CENTIMETERS\n" + ] + } + ], + "source": [ + "#CH-1 PAGE-44 PB-4;\n", + "\n", + "from __future__ import division\n", + "import math\n", + "\n", + "\n", + "sc=100;\n", + "hect=10000;\n", + "area=0.45*hect;\n", + "\n", + "cm1=(area)/5;\n", + "cm=math.sqrt(cm1);\n", + "\n", + "print('1cm=',cm);\n", + "RF=1/(cm);\n", + "print('RF=',RF);\n", + "\n", + "\n", + "maxl=400;\n", + "\n", + "los=(RF*maxl);\n", + "\n", + "print('length of scale is',los,'CENTIMETERS');\n" + ] + } + ], + "metadata": { + "kernelspec": { + "display_name": "Python 2", + "language": "python", + "name": "python2" + }, + "language_info": { + "codemirror_mode": { + "name": "ipython", + "version": 2 + }, + "file_extension": ".py", + "mimetype": "text/x-python", + "name": "python", + "nbconvert_exporter": "python", + "pygments_lexer": "ipython2", + "version": "2.7.11" + } + }, + "nbformat": 4, + "nbformat_minor": 0 +} |