updated the code

1 files changed, 13 insertions, 18 deletions

diff --git a/1445/CH2/EX2.17/Ex2_17.sce b/1445/CH2/EX2.17/Ex2_17.sce
index 9b4c7c29e..614c7b42a 100644
--- a/1445/CH2/EX2.17/Ex2_17.sce
+++ b/1445/CH2/EX2.17/Ex2_17.sce
@@ -1,18 +1,13 @@
 //CHAPTER 2- STEADY-STATE ANALYSIS OF SINGLE-PHASE A.C. CIRCUIT
 //Example 17
 
+clc;
 disp("CHAPTER 2");
 disp("EXAMPLE 17");
 
-
-//Given
-//AC Voltage e(t)=141.4.sin (120.t) 
-//Current in the circuit is
-//i(t)=14.14.sin (120.t+7.07.cos (120.t+30)
-
 //VARIABLE INITIALIZATION
-e=141.4;                             //in Volts
-E=141.4/sqrt(2);                     //in Volts
+e=141.4;                             //amplitude of e(t) in Volts
+E=141.4/sqrt(2);                     //RMS value of e(t) in Volts
 angle_E=0;                           //in degrees
 //i(t)=(14.14<0)+(7.07<120)
 i1=14.14;                            //in Amperes         
@@ -21,16 +16,16 @@ i2=7.07;                             //in Amperes
 angle_i2=120;                        //in degrees
 
 //SOLUTION
-//function to convert from polar form to rectangular form
-function [x,y]=pol2rect(mag,angle);
+function [x,y]=pol2rect(mag,angle);  //function 'pol2rect()' converts current in polar form to rectangular form 
 x=mag*cos(angle*(%pi/180));          //to convert the angle from degrees to radians
 y=mag*sin(angle*(%pi/180));
 endfunction;
-[i1_x,i1_y]=pol2rect(i1,angle_i1);
-[i2_x,i2_y]=pol2rect(i2,angle_i2);
+//the given current i(t) is composed of two currents i1(t) and i2(t)
+//i1(t) and i2(t) are not mentioned in the book but are considered for the sake of convenience
+[i1_x,i1_y]=pol2rect(i1,angle_i1);   //i1(t)= 14.14 sin(120t)
+[i2_x,i2_y]=pol2rect(i2,angle_i2);   //i2(t)=7.07 cos(120t+30)
 i=(i1_x+i2_x)+(%i*(i1_y+i2_y));
-//function to convert from rectangular form to polar form
-function [mag,angle]=rect2pol(x,y);
+function [mag,angle]=rect2pol(x,y);  //function 'rect2pol()' converts current in rectangular form to polar form
 mag=sqrt((x^2)+(y^2));         
 angle=atan(y/x)*(180/%pi);           //to convert the angle from radians to degrees
 endfunction;
@@ -43,15 +38,15 @@ angle_z=angle_E-angle_I;
 [r,xc]=pol2rect(z,angle_z);
 f=50;
 c=1/(2*%pi*f*(-xc));
-disp(sprintf("(i) The value of resistance is %5.3f Ω",r));
-disp(sprintf("    The value of capacitance is %6.4f μF",c*10^6));
+disp(sprintf("(i) The value of resistance is %f Ω",r));
+disp(sprintf("    The value of capacitance is %f μF",c*10^6));
 
 //solution (ii)
 pf=cos(angle_z*(%pi/180));
-disp(sprintf("(ii) The power factor is %4.3f ",pf));
+disp(sprintf("(ii) The power factor is %f ",pf));
 
 //solution (iii)
 p=E*I*pf;
-disp(sprintf("(iii) The power absorbed by the source is %d W",p));
+disp(sprintf("(iii) The power absorbed by the source is %f W",p));
 
 //END