ELEC 202 - First Tutorial (Phasors) 2023.

In this second course, we begin with the solution of circuits in AC steady state using phasor analysis. This is the tutorial (recitation) for this first part of the course.

[@yashparikh6610]

Professor Linares, thank you for your videos. They are incredible!

[@rolinychupetin]

You're very welcome! Thank you for the feedback. I really appreciate it.

[@tseckwr3783]

Thanks Professor L.

[@rolinychupetin]

You are welcome!

[@leeprimeroessler3277]

p2r ? Is that a function you define to make complex numbers work in CAS?

[@rolinychupetin]

I prefer working in radians mode when I'm in CAS. It is safer, in my experience. But when I need to enter a complex number in polar form I use
// Polar to Rec
// Input: complex number in polar form (abs,arg in degrees)
// Output: complex number in rectangular mode
EXPORT p2r(m,degrees)
BEGIN
LOCAL a,b,mode;
mode:=HAngle; HAngle:=1;
a:=m*cos(degrees);
b:=m*sin(degrees);
HAngle:=mode;
RETURN(a+i*b);
END;

[@rolinychupetin]

I also use these other two (again, I set my CAS to radians),
// Rec to Polar
// Input: complex number in rectangular format
// Output: list with {abs,arg in degrees}
// ...... of the complex number in polar form.
EXPORT r2p(a)
BEGIN
LOCAL m,t,anglemode;
anglemode:=HAngle;
HAngle:=0;
m:=abs(a); t:=arg(a)*180/pi;
HAngle:=anglemode;
RETURN({m,t});
END;
// argument in degrees
// Input: complex number
// Output: argument (degrees)
EXPORT argd(a)
BEGIN
LOCAL mode:=HAngle,x;
HAngle:=0;
x:=arg(a)*180/pi;
HAngle:=mode;
RETURN(x);
END;

[@leeprimeroessler3277]

@@rolinychupetin Thank you for sharing.