Added(A)/Deleted(D) following books

 A  A_Textbook_of_Electrical_Technology_:_AC_and_DC_Machines_(Volume_-_2)_by_A._K._Theraja_B.L_Thereja/chapter25_2.ipynb
A  A_Textbook_of_Electrical_Technology_:_AC_and_DC_Machines_(Volume_-_2)_by_A._K._Theraja_B.L_Thereja/chapter26_2.ipynb
A  A_Textbook_of_Electrical_Technology_:_AC_and_DC_Machines_(Volume_-_2)_by_A._K._Theraja_B.L_Thereja/chapter27_2.ipynb
A  A_Textbook_of_Electrical_Technology_:_AC_and_DC_Machines_(Volume_-_2)_by_A._K._Theraja_B.L_Thereja/chapter28_2.ipynb
A  A_Textbook_of_Electrical_Technology_:_AC_and_DC_Machines_(Volume_-_2)_by_A._K._Theraja_B.L_Thereja/chapter29_2.ipynb
A  A_Textbook_of_Electrical_Technology_:_AC_and_DC_Machines_(Volume_-_2)_by_A._K._Theraja_B.L_Thereja/chapter30_2.ipynb
A  A_Textbook_of_Electrical_Technology_:_AC_and_DC_Machines_(Volume_-_2)_by_A._K._Theraja_B.L_Thereja/chapter31_2.ipynb
A  A_Textbook_of_Electrical_Technology_:_AC_and_DC_Machines_(Volume_-_2)_by_A._K._Theraja_B.L_Thereja/chapter32_2.ipynb
A  A_Textbook_of_Electrical_Technology_:_AC_and_DC_Machines_(Volume_-_2)_by_A._K._Theraja_B.L_Thereja/chapter33_2.ipynb
A  A_Textbook_of_Electrical_Technology_:_AC_and_DC_Machines_(Volume_-_2)_by_A._K._Theraja_B.L_Thereja/chapter34_2.ipynb
A  A_Textbook_of_Electrical_Technology_:_AC_and_DC_Machines_(Volume_-_2)_by_A._K._Theraja_B.L_Thereja/chapter35_2.ipynb
A  A_Textbook_of_Electrical_Technology_:_AC_and_DC_Machines_(Volume_-_2)_by_A._K._Theraja_B.L_Thereja/chapter36_2.ipynb
A  A_Textbook_of_Electrical_Technology_:_AC_and_DC_Machines_(Volume_-_2)_by_A._K._Theraja_B.L_Thereja/chapter37_2.ipynb
A  A_Textbook_of_Electrical_Technology_:_AC_and_DC_Machines_(Volume_-_2)_by_A._K._Theraja_B.L_Thereja/chapter38_2.ipynb
A  A_Textbook_of_Electrical_Technology_:_AC_and_DC_Machines_(Volume_-_2)_by_A._K._Theraja_B.L_Thereja/chapter39_2.ipynb
A  A_Textbook_of_Electrical_Technology_:_AC_and_DC_Machines_(Volume_-_2)_by_A._K._Theraja_B.L_Thereja/screenshots/chapter29example32_2.png
A  A_Textbook_of_Electrical_Technology_:_AC_and_DC_Machines_(Volume_-_2)_by_A._K._Theraja_B.L_Thereja/screenshots/chapter29example33_2.png
A  A_Textbook_of_Electrical_Technology_:_AC_and_DC_Machines_(Volume_-_2)_by_A._K._Theraja_B.L_Thereja/screenshots/chapter32example30_2.png
A  Advance_Semiconductor_Devices_by_K._C._Nandi/chapter1_1.ipynb
A  Advance_Semiconductor_Devices_by_K._C._Nandi/chapter2_1.ipynb
A  Advance_Semiconductor_Devices_by_K._C._Nandi/chapter5_1.ipynb
A  Advance_Semiconductor_Devices_by_K._C._Nandi/screenshots/KC_econ1_chapter1_1.png
A  Advance_Semiconductor_Devices_by_K._C._Nandi/screenshots/KC_econ_ch1_1.png
A  Advance_Semiconductor_Devices_by_K._C._Nandi/screenshots/KC_percentChangeinDiodeCurrent_chapter2_1.png
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch15_1.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch15_2.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch15_3.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch16_1.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch16_2.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch16_3.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch17_1.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch17_2.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch17_3.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch18_1.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch18_2.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch18_3.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch19_1.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch19_2.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch19_3.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch20_1.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch20_2.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch20_3.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch21_1.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch21_2.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch21_3.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch22_1.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch22_2.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch22_3.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch23_1.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch23_2.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch23_3.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch24_1.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch24_2.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch24_3.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch25_1.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch25_2.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch25_3.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch26_1.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch26_2.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch26_3.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch27_1.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch27_2.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch27_3.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch28_1.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch28_2.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch28_3.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch29_1.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch29_2.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch29_3.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch30_1.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch30_2.ipynb
D  College_Physics_(volume_2)_by_R._A._Serway_and_J._S._Faughn/Ch30_3.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch10_1.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch11_1.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch12_1.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch13_1.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch1_1.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch2_1.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch3_1.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch4_1.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch5_1.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch6_1.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch7_1.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch8_1.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/Ch9_1.ipynb
A  Electronic_Devices_and_Circuits_by_J._Paul/screenshots/4CollCurr_1.png
A  Electronic_Devices_and_Circuits_by_J._Paul/screenshots/4MaxNBasRes_1.png
A  Electronic_Devices_and_Circuits_by_J._Paul/screenshots/4saturationMode_1.png
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch1.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch1_1.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch1_2.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch1_3.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch1_4.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch1_5.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch2.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch2_1.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch2_2.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch2_3.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch2_4.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch2_5.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch3.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch3_1.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch3_2.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch3_3.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch3_4.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch3_5.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch4.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch4_1.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch4_2.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch4_3.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch4_4.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch4_5.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch6.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch6_1.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch6_2.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch6_3.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch6_4.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch6_5.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch7.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch7_1.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch7_2.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch7_3.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch7_4.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch7_5.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch8.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch8_1.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch8_2.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch8_3.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch8_4.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/ch8_5.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/chapter1_1.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/chapter2_1.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/chapter3_1.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/chapter4_1.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/chapter6_1.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/chapter7_1.ipynb
D  Engineering_Physics_(volume_-_2)_by_B._K._Pandey_and_S._Chaturvedi/chapter8_1.ipynb
A  Linear_Integrated_Circuit_by_M._S._Sivakumar/Ch11_1.ipynb
A  Linear_Integrated_Circuit_by_M._S._Sivakumar/Ch12_1.ipynb
A  Linear_Integrated_Circuit_by_M._S._Sivakumar/Ch13_1.ipynb
A  Linear_Integrated_Circuit_by_M._S._Sivakumar/Ch14_1.ipynb
A  Linear_Integrated_Circuit_by_M._S._Sivakumar/Ch3_1.ipynb
A  Linear_Integrated_Circuit_by_M._S._Sivakumar/Ch4_1.ipynb
A  Linear_Integrated_Circuit_by_M._S._Sivakumar/Ch5_1.ipynb
A  Linear_Integrated_Circuit_by_M._S._Sivakumar/Ch6_1.ipynb
A  Linear_Integrated_Circuit_by_M._S._Sivakumar/Ch7_1.ipynb
A  Linear_Integrated_Circuit_by_M._S._Sivakumar/Ch8_1.ipynb
A  Linear_Integrated_Circuit_by_M._S._Sivakumar/Ch9_1.ipynb
A  Linear_Integrated_Circuit_by_M._S._Sivakumar/screenshots/BiasingVoltage_1.png
A  Linear_Integrated_Circuit_by_M._S._Sivakumar/screenshots/InOutCrrnt_1.png
A  Linear_Integrated_Circuit_by_M._S._Sivakumar/screenshots/inAndOutCurrnt_1.png

1 files changed, 296 insertions, 0 deletions

diff --git a/Electronic_Devices_and_Circuits_by_J._Paul/Ch9_1.ipynb b/Electronic_Devices_and_Circuits_by_J._Paul/Ch9_1.ipynb
new file mode 100644
index 00000000..522ff62b
--- /dev/null
+++ b/Electronic_Devices_and_Circuits_by_J._Paul/Ch9_1.ipynb
@@ -0,0 +1,296 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Chapter 9 - Multistage Amplifier"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## PageNumber 424 example 1"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "frequency1   =   50982.45 hertz\n",
+      "frequency2   =   196145.92 hertz\n",
+      "frequency   =   269258240.36 hertz\n",
+      "frequency   =   76822.13 hertz\n"
+     ]
+    }
+   ],
+   "source": [
+    "from math import sqrt\n",
+    "from __future__ import division\n",
+    "#(1) frequency\n",
+    "freque=100*10**3*sqrt(2**(1/3)-(1))\n",
+    "frequ2=100*10**3/sqrt(2**(1/3)-(1))\n",
+    "print \"frequency1   =   %0.2f\"%((freque)),\"hertz\"\n",
+    "print \"frequency2   =   %0.2f\"%((frequ2)),\"hertz\"\n",
+    "#(2)frequency\n",
+    "freq11=100*10**6##hertz\n",
+    "freq12=150*10**6##hertz\n",
+    "freq13=200*10**6##hertz\n",
+    "freq21=100*10**3##hertz\n",
+    "freq22=150*10**3##hertz\n",
+    "freq23=200*10**3##hertz\n",
+    "frequ1=sqrt(freq11**2+freq12**2+freq13**2)\n",
+    "print \"frequency   =   %0.2f\"%((frequ1)),\"hertz\"##correction in the book 269.25mega hertz\n",
+    "frequ1=1/sqrt((1/(freq21**2))+(1/(freq22**2))+(1/(freq23**2)))\n",
+    "print \"frequency   =   %0.2f\"%((frequ1)),\"hertz\"##correction in the book"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## PageNumber 424 example 2"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "coupling capacitance   =   5.48e-06 /r`\n"
+     ]
+    }
+   ],
+   "source": [
+    "freque=60##hertz\n",
+    "frequ1=freque*0.484\n",
+    "cb=1/(frequ1*2*3.14*10**3)\n",
+    "print \"coupling capacitance   =   %0.2e\"%((cb)),\"/r`\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## PageNumber 425 example 3"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "cb   =   6.28e-08 farad\n",
+      "cb   =   8.92e-08 farad\n",
+      "gain of each stage   =   1.06e-03\n"
+     ]
+    }
+   ],
+   "source": [
+    "g=10*10**-3##ampere per volt\n",
+    "rd=5.5*10**3##ohm\n",
+    "rg=1*10**6##ohm\n",
+    "#(1) cb frequency 1decibel to 10hertz\n",
+    "ri=rg\n",
+    "r1=(rd*8*10**3)/(rd+8*10**3)\n",
+    "cb=10**-6/(3.14*5.07)\n",
+    "print \"cb   =   %0.2e\"%((cb)),\"farad\"\n",
+    "#(2) cb\n",
+    "cb=(cb*(5)/(3.52))\n",
+    "print \"cb   =   %0.2e\"%((cb)),\"farad\"\n",
+    "#(3) gain\n",
+    "a1=g**2*(3.26**2)\n",
+    "print \"gain of each stage   =   %0.2e\"%((a1))\n",
+    "#correction required in the book"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## PageNumber 427 example 4"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "upper frequency   =   78895.46 hertz\n",
+      "lower frequency   =   20408.16 hertz\n"
+     ]
+    }
+   ],
+   "source": [
+    "freque=40*10**3##hertz\n",
+    "frequ1=freque/0.507\n",
+    "print \"upper frequency   =   %0.2f\"%((frequ1)),\"hertz\"\n",
+    "frequ1=freque/1.96\n",
+    "print \"lower frequency   =   %0.2f\"%((frequ1)),\"hertz\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## PageNumber 427 example 5"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "overal voltage gain   =   62.01 decibel\n",
+      "lower frequency of each   =   31.70 hertz\n",
+      "lower frequency overal   =   62.13 hertz\n"
+     ]
+    }
+   ],
+   "source": [
+    "from math import log10\n",
+    "g=2.6*10**-3##ampere per volt\n",
+    "rd=7.7*10**3##ohm\n",
+    "rd1=12*10**3##ohm\n",
+    "cb=0.005*10**-6##farad\n",
+    "#(1) voltage gain\n",
+    "volgai=g*((1/rd)+1/rd1+1/(1*10**3))\n",
+    "volgai=(20*(log10(10.8)))*3\n",
+    "print \"overal voltage gain   =   %0.2f\"%((volgai)),\"decibel\"##correction in the book\n",
+    "#(2) lower frequency\n",
+    "r=rd*rd1/(rd+rd1)\n",
+    "freque=1/((2*3.14)*(r+1*10**6)*cb)\n",
+    "print \"lower frequency of each   =   %0.2f\"%((freque)),\"hertz\"\n",
+    "#(3) overal lower frequency\n",
+    "freque=freque*1.96\n",
+    "print \"lower frequency overal   =   %0.2f\"%((freque)),\"hertz\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## PageNumber 429 example 6"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 6,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "voltage gain   =   2851.60\n",
+      "cb   =   2.61e-06 farad\n",
+      "cb   <=   1.64e-05 farad\n"
+     ]
+    }
+   ],
+   "source": [
+    "hfe=50\n",
+    "hie=1.1*10**3##ohm\n",
+    "#(1) gain\n",
+    "r1=2*10**3##ohm\n",
+    "volgai=-hfe*r1/(hie)\n",
+    "r11=25*10**3*hie/(25*10**3+hie)\n",
+    "r11=r1*r11/(r1+r11)\n",
+    "volga1=-hfe*r11/hie\n",
+    "volgai=volgai*volga1\n",
+    "print \"voltage gain   =   %0.2f\"%((volgai))\n",
+    "freque=20##hertz\n",
+    "ri=25*10**3*hie/(25*10**3+hie)\n",
+    "cb=1/(2*3.14*(ri+r1)*(freque))\n",
+    "print \"cb   =   %0.2e\"%((cb)),\"farad\"\n",
+    "cb=1/(2*3.14*3.05*10**3*10/3.14)\n",
+    "print \"cb   <=   %0.2e\"%((cb)),\"farad\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## PageNumber 432 example 8"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 7,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "theta1   =   5.71\n",
+      "phase constant 10f1<=f<=0.1f11\n"
+     ]
+    }
+   ],
+   "source": [
+    "from math import atan, degrees\n",
+    "theta1=degrees(atan(0.1))\n",
+    "print \"theta1   =   %0.2f\"%((theta1))\n",
+    "print \"phase constant 10f1<=f<=0.1f11\""
+   ]
+  }
+ ],
+ "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": "2.7.9"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 0
+}