removing problem statements

11 files changed, 0 insertions, 105 deletions

diff --git a/Linear_Integrated_Circuits/Chapter_1.ipynb b/Linear_Integrated_Circuits/Chapter_1.ipynb
index b3bbe576..e8573149 100644
--- a/Linear_Integrated_Circuits/Chapter_1.ipynb
+++ b/Linear_Integrated_Circuits/Chapter_1.ipynb
@@ -22,7 +22,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''sheet resistance of P-type diffusion'''", 
       "", 
       "#Variable Declaration:", 
       "Rs=200.0         #Sheet resistance of p-type diffusion in ohm/square", 
@@ -59,7 +58,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''sheet resistance of polysilicon layer'''", 
       "", 
       "#Variable Declaration:", 
       "Rs=30.0         #Sheet resistance of p-type diffusion in ohm/square", 
diff --git a/Linear_Integrated_Circuits/Chapter_10.ipynb b/Linear_Integrated_Circuits/Chapter_10.ipynb
index d9506c7e..9b461180 100644
--- a/Linear_Integrated_Circuits/Chapter_10.ipynb
+++ b/Linear_Integrated_Circuits/Chapter_10.ipynb
@@ -22,7 +22,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''DC Control voltage'''", 
       "", 
       "#Variable Declaration:", 
       "fs=20000.0                 #Signal frequency in hertz", 
@@ -57,7 +56,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''VCO Circuit'''", 
       "", 
       "", 
       "#Part A", 
@@ -127,7 +125,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''PLL565'''", 
       "", 
       "#Variable Declaration:", 
       "import math", 
@@ -186,7 +183,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''IC565'''", 
       "", 
       "#Variable Declaration:", 
       "import math", 
@@ -234,7 +230,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''IC565 Output frequency'''", 
       "", 
       "#Variable Declaration:", 
       "import math", 
@@ -283,7 +278,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''PLL'''", 
       "", 
       "#Variable Declaration:", 
       "fr=300.0                  #Free running frequency in hertz", 
@@ -329,7 +323,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''IC565 as FM modulator'''", 
       "", 
       "#Variable Declaration:", 
       "import math", 
diff --git a/Linear_Integrated_Circuits/Chapter_11.ipynb b/Linear_Integrated_Circuits/Chapter_11.ipynb
index 87c114d1..85490636 100644
--- a/Linear_Integrated_Circuits/Chapter_11.ipynb
+++ b/Linear_Integrated_Circuits/Chapter_11.ipynb
@@ -22,7 +22,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''Resolution'''", 
       "", 
       "#Variable Declaration:", 
       "import math", 
@@ -67,7 +66,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''D/A converter resolution'''", 
       "", 
       "#Variable Declaration:", 
       "n=8.0                     #Number of bits in word", 
@@ -103,7 +101,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''Ladder type D/A converter'''", 
       "", 
       "#Variable Declaration:", 
       "n=4.0                      #Number of bits in word", 
@@ -147,7 +144,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''8-bit D/A converter'''", 
       "", 
       "#Variable Declaration:", 
       "reso=10.0                    #Resolution of D/A converter", 
@@ -191,7 +187,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''4-bit converter'''", 
       "", 
       "#Part A", 
       "print('\\nPart A')", 
@@ -286,7 +281,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''Inverted R-2R ladder'''", 
       "", 
       "#Variable Declaration:", 
       "import math", 
@@ -348,7 +342,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "''' Output voltage for digital input'''", 
       "", 
       "#Variable Declaration:", 
       "lsb=8.0*10**-6              #Current for 1 LSB in ampere", 
@@ -413,7 +406,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''Resolution and dynamic range'''", 
       "", 
       "#Variable Declaration:", 
       "import math", 
@@ -455,7 +447,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''8-bit A/D converter'''", 
       "", 
       "#Variable Declaration:", 
       "Vm=10.0                #Voltage in volt", 
@@ -508,7 +499,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''Successive approximation A/D converter'''", 
       "", 
       "#Variable declaration:", 
       "n=8.0                    #Number of bits in word", 
diff --git a/Linear_Integrated_Circuits/Chapter_2.ipynb b/Linear_Integrated_Circuits/Chapter_2.ipynb
index d8cc6868..2bd3dfb6 100644
--- a/Linear_Integrated_Circuits/Chapter_2.ipynb
+++ b/Linear_Integrated_Circuits/Chapter_2.ipynb
@@ -22,7 +22,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''current source to proide output current'''", 
       "", 
       "#Variable Declaration:", 
       "Vcc=5.0              #voltage Vcc in volt", 
@@ -65,7 +64,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "''' identical transistor circuit'''", 
       "", 
       "#Variable Declarations:", 
       "Vbe=0.7             #voltage Vbe in volt", 
@@ -108,7 +106,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''output current of transistor'''", 
       "", 
       "#Variable Declaration", 
       "Vbe=0.6             #Voltage Vbe in volt", 
@@ -146,7 +143,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''resistance required to produce a current'''", 
       "", 
       "#Variable Declaration:", 
       "import math", 
@@ -192,7 +188,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''multiple current source'''", 
       "", 
       "#Variable Declaration:", 
       "Beta=100.0                  #Gain for transistor", 
@@ -240,7 +235,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''design current source using MOSFET'''", 
       "", 
       "#Variable Declaration:", 
       "Iref=0.25*10**-3              #Reference current in amperes", 
@@ -297,7 +291,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''differential amplifier CMRR'''", 
       "", 
       "#Variable Declaration:", 
       "cmrra=1000.0          #common mode rejection ratio", 
@@ -351,7 +344,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''Q-point of differential amplifier'''", 
       "", 
       "#Variable Declaration:", 
       "Beta=100.0               #Gain", 
@@ -424,7 +416,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''Q-point for MOSFET of differential amplifier'''", 
       "", 
       "#Variable Declaration:", 
       "import math", 
diff --git a/Linear_Integrated_Circuits/Chapter_3.ipynb b/Linear_Integrated_Circuits/Chapter_3.ipynb
index 92c89180..8906bf98 100644
--- a/Linear_Integrated_Circuits/Chapter_3.ipynb
+++ b/Linear_Integrated_Circuits/Chapter_3.ipynb
@@ -22,7 +22,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''input stage with bias circuit'''", 
       "", 
       "#Variable Declaration:", 
       "Vp=15.0                           #Volatge in volt", 
@@ -61,7 +60,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''gain stage of op-amp'''", 
       "", 
       "#Variable Declaration:", 
       "Iref= 0.715*10**-3         #reference current in ampere", 
@@ -103,7 +101,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''output stage of op-amp'''", 
       "", 
       "#Variable Declaration:", 
       "import math", 
@@ -162,7 +159,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''average bias current'''", 
       "", 
       "#Variable Declaration:", 
       "Ib1=400.0*10**-9         #Current in ampere", 
@@ -202,7 +198,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''maximum output offset voltage'''", 
       "", 
       "#Variable Declaration:", 
       "Ios=400.0*10**-9         #Current in ampere", 
@@ -238,7 +233,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''bias current compensation'''", 
       "", 
       "#Variable Declaration:", 
       "Rf=10.0*10**3                      #Resistance in ohm", 
@@ -283,7 +277,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''op-amp drift specification'''", 
       "", 
       "#Part A", 
       "#Variable Declaration:", 
@@ -336,7 +329,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''frequency response'''", 
       "f=1000.0                 # frequency in hertz", 
       "#from graph", 
       "gain_db=60.0             # Gain in db", 
@@ -367,7 +359,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''unity gain bandwidth'''", 
       "", 
       "#Variable Declaration:", 
       "riset=0.7*10**-6               #rise time in microsecond", 
@@ -401,7 +392,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''open loop dc voltage gain'''", 
       "", 
       "#Variavle Declaration:", 
       "ugb=1.5*10**6              #Unity gain bandwidth in hertz", 
@@ -435,7 +425,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''time taken to change output'''", 
       "", 
       "#Variable Declaration:", 
       "Voch=10.0             #Change of voltage in volt", 
@@ -469,7 +458,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''undistorted sine wave'''", 
       "", 
       "import math", 
       "#Part A", 
@@ -519,7 +507,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''max input signal for undistorted output'''", 
       "", 
       "#Variable Declaration:", 
       "import math", 
@@ -555,7 +542,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''amplify square wave with rise time'''", 
       "", 
       "#Variable Declaration:", 
       "slew=0.5                  #Slew rate in volt per microsecond", 
@@ -595,7 +581,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''effect of output voltage change on slew rate'''", 
       "", 
       "#Variable Declaration:", 
       "Vch=20.0                #Change in voltage in volt", 
@@ -630,7 +615,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''max input frequency for undistorted output'''", 
       "", 
       "#Variable Declaration:", 
       "import math", 
@@ -669,7 +653,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''max input voltage for undistorted output'''", 
       "", 
       "#Variable Declaration:", 
       "import math", 
@@ -708,7 +691,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''noise gain of circuit'''", 
       "", 
       "#Variable Declaration:", 
       "Rf=10.0*10**3        #Resistance in ohm", 
@@ -745,7 +727,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''closed loop voltage gain'''", 
       "", 
       "#Variable Deeclaration:", 
       "Rf=10.0*10**3       #Feedback resistance in ohm", 
@@ -779,7 +760,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''closed loop voltage gain and beta'''", 
       "", 
       "#Variable Declaration:", 
       "Rf=10.0*10**3      #Feedback resistance in ohm", 
@@ -818,7 +798,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''non-inverting amplifier circuit'''", 
       "", 
       "#Variable Declaration:", 
       "R1=10.0*10**3        #Resistance in ohm", 
@@ -856,7 +835,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''non-inverting amplifier with IL'''", 
       "", 
       "#Variable Declration:", 
       "Vi=0.6                #volatge in volt ", 
@@ -911,7 +889,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''capacitor coupled voltage follower'''", 
       "", 
       "#Variable Declaration:", 
       "import math", 
@@ -955,7 +932,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "''' high impedence capacitor coupled voltage follower'''", 
       "", 
       "#Variable Declaration:", 
       "import math", 
@@ -1014,7 +990,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''high impedence capacitor coupled non-inverting amplifier'''", 
       "", 
       "#Variable Declaration:", 
       "import math", 
@@ -1064,7 +1039,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''capacitor coupled inverting amplifier'''", 
       "", 
       "#Variable Declaration:", 
       "import math", 
@@ -1118,7 +1092,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''capacitor coupled non-inverting amplifier'''", 
       "", 
       "#Variable Declaration:", 
       "import math", 
@@ -1183,7 +1156,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''common mode gain Acm'''", 
       "", 
       "#Variable Declaration:", 
       "cmrr=10**5         #Common mode rejection ratio", 
@@ -1217,7 +1189,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''differential amplifier with two op-amp'''", 
       "", 
       "#Variable Declaration:", 
       "R1=560.0            #Resistance value in ohm", 
diff --git a/Linear_Integrated_Circuits/Chapter_4.ipynb b/Linear_Integrated_Circuits/Chapter_4.ipynb
index 7405dd82..cd759624 100644
--- a/Linear_Integrated_Circuits/Chapter_4.ipynb
+++ b/Linear_Integrated_Circuits/Chapter_4.ipynb
@@ -52,7 +52,6 @@
      "cell_type": "code",

      "collapsed": false,

      "input": [

-      "'''phase lag circuit'''\n",

       "\n",

       "#Variable Declaration:\n",

       "import math\n",

@@ -101,7 +100,6 @@
      "cell_type": "code",

      "collapsed": false,

      "input": [

-      "'''output current'''\n",

       "\n",

       "#Variable Declaration:\n",

       "Vee=12.0            #Volatge Vee in volt\n",

@@ -140,7 +138,6 @@
      "cell_type": "code",

      "collapsed": false,

      "input": [

-      "'''determine the current'''\n",

       "\n",

       "#Variable Declaration:\n",

       "V=5.0               #Voltage in volt\n",

@@ -177,7 +174,6 @@
      "cell_type": "code",

      "collapsed": false,

      "input": [

-      "'''determine the current through RL'''\n",

       "\n",

       "#Variable Declaration:\n",

       "Vcc=15.0                #Voltage in volt\n",

@@ -216,7 +212,6 @@
      "cell_type": "code",

      "collapsed": false,

      "input": [

-      "'''determine load gain'''\n",

       "\n",

       "#Variable Declaration:\n",

       "R1=22.0*10**3              #Resistance in ohm\n",

@@ -265,7 +260,6 @@
      "cell_type": "code",

      "collapsed": false,

      "input": [

-      "'''voltage to current converter with floating load'''\n",

       "\n",

       "#Variable Declaration:\n",

       "Rf=10.0*10**3      #Feedback resistance in ohm\n",

@@ -312,7 +306,6 @@
      "cell_type": "code",

      "collapsed": false,

      "input": [

-      "'''summing amplifier'''\n",

       "\n",

       "#Variable Declaration:\n",

       "V1=2.0                  #Voltage in volt\n",

@@ -354,7 +347,6 @@
      "cell_type": "code",

      "collapsed": false,

      "input": [

-      "'''practical integrator circuit'''\n",

       "\n",

       "#Variable Declaration:\n",

       "import math\n",

@@ -491,7 +483,6 @@
      "cell_type": "code",

      "collapsed": false,

      "input": [

-      "'''design a differentiator'''\n",

       "\n",

       "#Variable Declaration:\n",

       "import math\n",

@@ -529,7 +520,6 @@
      "cell_type": "code",

      "collapsed": false,

      "input": [

-      "'''design a differentiator using op-amp'''\n",

       "\n",

       "#Variable Declaration:\n",

       "import math\n",

@@ -681,7 +671,6 @@
      "cell_type": "code",

      "collapsed": false,

      "input": [

-      "'''transfer function using op-amp'''\n",

       "import sympy\n",

       "from sympy import *\n",

       "sympy.init_printing()\n",

diff --git a/Linear_Integrated_Circuits/Chapter_5.ipynb b/Linear_Integrated_Circuits/Chapter_5.ipynb
index c23dacd0..53ae3319 100644
--- a/Linear_Integrated_Circuits/Chapter_5.ipynb
+++ b/Linear_Integrated_Circuits/Chapter_5.ipynb
@@ -22,7 +22,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "''' transfer characteristics of comparator'''", 
       "", 
       "#Variable Declaration:", 
       "Vz1=5.5             #Volatage in volt", 
@@ -60,7 +59,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''inverting schmitt trigger'''", 
       "", 
       "#Variable Declaration:", 
       "R1=56.0*10**3               #Resistance value in ohm", 
@@ -103,7 +101,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''clipper circuit'''", 
       "", 
       "#Variable Declaration:", 
       "Vclipl=0.35            #Voltage in volt", 
@@ -150,7 +147,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''negative clamping circuit'''", 
       "", 
       "#Variable Declaration:", 
       "Vref=1.5                #Voltage in volt", 
diff --git a/Linear_Integrated_Circuits/Chapter_6.ipynb b/Linear_Integrated_Circuits/Chapter_6.ipynb
index 002417d5..1e4a097d 100644
--- a/Linear_Integrated_Circuits/Chapter_6.ipynb
+++ b/Linear_Integrated_Circuits/Chapter_6.ipynb
@@ -52,7 +52,6 @@
      "cell_type": "code",

      "collapsed": false,

      "input": [

-      "'''first order low pass butterworth filter'''\n",

       "\n",

       "#Variable Declaration:\n",

       "import math\n",

@@ -91,7 +90,6 @@
      "cell_type": "code",

      "collapsed": false,

      "input": [

-      "'''first order low pass filter'''\n",

       "\n",

       "#Variable Declaration:\n",

       "import math\n",

@@ -134,7 +132,6 @@
      "cell_type": "code",

      "collapsed": false,

      "input": [

-      "'''second order low pass butterworth filter'''\n",

       "\n",

       "#Variable Declaration:\n",

       "import math\n",

@@ -179,7 +176,6 @@
      "cell_type": "code",

      "collapsed": false,

      "input": [

-      "'''second order low pass butterworth filter with uppercutoff frequency'''\n",

       "\n",

       "#Variable Declaration:\n",

       "import math\n",

@@ -227,7 +223,6 @@
      "cell_type": "code",

      "collapsed": false,

      "input": [

-      "'''third order low pass butterworth filter'''\n",

       "\n",

       "#Variable declaration:\n",

       "import math\n",

@@ -281,7 +276,6 @@
      "cell_type": "code",

      "collapsed": false,

      "input": [

-      "'''fourth order low pass butterworth filter'''\n",

       "\n",

       "#Variable Declaration:\n",

       "import math\n",

@@ -340,7 +334,6 @@
      "cell_type": "code",

      "collapsed": false,

      "input": [

-      "'''first order high pass filter'''\n",

       "\n",

       "#Variable Declaration:\n",

       "import math\n",

@@ -386,7 +379,6 @@
      "cell_type": "code",

      "collapsed": false,

      "input": [

-      "'''second order high pass butterworth filter variable gain'''\n",

       "\n",

       "#Variable Declaration:\n",

       "import math\n",

@@ -476,7 +468,6 @@
      "cell_type": "code",

      "collapsed": false,

      "input": [

-      "'''fourth order high pass butterworth filter'''\n",

       "\n",

       "#Variable Declaration:\n",

       "import math\n",

@@ -539,7 +530,6 @@
      "cell_type": "code",

      "collapsed": false,

      "input": [

-      "'''bandpass filter'''\n",

       "\n",

       "#Variable Declaration:\n",

       "import math\n",

@@ -587,7 +577,6 @@
      "cell_type": "code",

      "collapsed": false,

      "input": [

-      "'''bandpass filter with resonant frequency'''\n",

       "\n",

       "#Variable Declaration:\n",

       "import math\n",

@@ -639,7 +628,6 @@
      "cell_type": "code",

      "collapsed": false,

      "input": [

-      "'''narrowband bandpass filter'''\n",

       "\n",

       "#Variable Declaration:\n",

       "import math\n",

@@ -685,7 +673,6 @@
      "cell_type": "code",

      "collapsed": false,

      "input": [

-      "'''narrowband bandpass filter with resonant frequency'''\n",

       "\n",

       "#Variable Declaration:\n",

       "fr=200.0                     #Resonant frequency in hertz\n",

@@ -730,7 +717,6 @@
      "cell_type": "code",

      "collapsed": false,

      "input": [

-      "''' clock frequency'''\n",

       "\n",

       "#Variable Declaration:\n",

       "R=1.0*10**6                   #Resistance in ohm\n",

diff --git a/Linear_Integrated_Circuits/Chapter_7.ipynb b/Linear_Integrated_Circuits/Chapter_7.ipynb
index 143b1a36..ff558ee5 100644
--- a/Linear_Integrated_Circuits/Chapter_7.ipynb
+++ b/Linear_Integrated_Circuits/Chapter_7.ipynb
@@ -22,7 +22,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''RC Phase shift oscillator'''", 
       "", 
       "#Variable Declarartion:", 
       "import math", 
@@ -68,7 +67,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''Wien bridge oscillator'''", 
       "", 
       "#Variable Declaration:", 
       "import math", 
@@ -117,7 +115,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "''' Astable multivibrator'''", 
       "", 
       "#Variable Declaration:", 
       "R1=116.0*10**3          #Resistance in ohm", 
@@ -172,7 +169,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''Square wave oscillator'''", 
       "", 
       "#Variable Declaration:", 
       "fo=1000.0                 #Frequency in hertz", 
@@ -210,7 +206,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''Triangular wave generator'''", 
       "", 
       "#Variable Declaration:", 
       "R1=100.0*10**3           #Resistance in ohm", 
@@ -265,7 +260,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''Sawtooth wave generator'''", 
       "", 
       "#Variable Declaration:", 
       "Ri=10.0*10**3              #Resitance in ohm", 
@@ -304,7 +298,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''Monostable multivibrator'''", 
       "# Answer in textbook is wrong", 
       "#Varible Declaration:", 
       "C=0.1*10**-6          #Capacitance in farad", 
@@ -339,7 +332,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''Frequency of oscillation'''", 
       "", 
       "#Variable Declaration:", 
       "D=20.0 # 20 percent            #Duty cycle", 
@@ -378,7 +370,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''Astable multivibrator'''", 
       "", 
       "#Variable Declaration:", 
       "D=0.7                      #Duty cycle ", 
@@ -419,7 +410,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''Teletypewrite'''", 
       "", 
       "#Variable Declaration:", 
       "f1=1070.0                   #Frequency in hertz", 
diff --git a/Linear_Integrated_Circuits/Chapter_8.ipynb b/Linear_Integrated_Circuits/Chapter_8.ipynb
index 09138a1f..b9f79a2c 100644
--- a/Linear_Integrated_Circuits/Chapter_8.ipynb
+++ b/Linear_Integrated_Circuits/Chapter_8.ipynb
@@ -22,7 +22,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''Linear Voltage Regulator'''", 
       "", 
       "#Variable Declaration:", 
       "Vo=15.0                 #Output voltage in volt", 
@@ -99,7 +98,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''7805 Voltage Regulator'''", 
       "", 
       "#Variable Declaration:", 
       "IL=0.25                #Current in ampere", 
@@ -145,7 +143,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''7805 Regulator Circuit'''", 
       "", 
       "#Variable Declaration:", 
       "VL=5.0                 #Voltage in volt", 
@@ -224,7 +221,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''LM317 Regulator'''", 
       "", 
       "#Variable Declaration:", 
       "R1=240.0                #Resistance in ohm", 
@@ -260,7 +256,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''Voltage regulator using LM317'''", 
       "", 
       "#Variable Declaration:", 
       "Iadjmax=100.0*10**-6          #Current in ampere", 
@@ -307,7 +302,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''Current Limiting Circuit'''", 
       "", 
       "#Variable Declaration:", 
       "ILmax=0.5                 #Current in ampere", 
@@ -365,7 +359,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "''' LM723 Regulator'''", 
       "", 
       "#Variable Declaration:", 
       "R2=10000.0                #Resistance in ohm ", 
@@ -402,7 +395,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''Continuously  adjustable power supply'''", 
       "", 
       "#Variable Declaration:", 
       "Vref=7.15                #Reference voltage in volt", 
diff --git a/Linear_Integrated_Circuits/Chapter_9.ipynb b/Linear_Integrated_Circuits/Chapter_9.ipynb
index 3dc8e5f6..c60b9c67 100644
--- a/Linear_Integrated_Circuits/Chapter_9.ipynb
+++ b/Linear_Integrated_Circuits/Chapter_9.ipynb
@@ -22,7 +22,6 @@
      "cell_type": "code", 
      "collapsed": false, 
      "input": [
-      "'''DC Component'''", 
       "", 
       "#Variable Declaration:", 
       "import math",