Recent content by dumpman

Thank you Yungman, that's the kind of answer I have been looking for... Can you tell me more what kind of work do engineers do in the field of DSP and control? I am more interested in these two areas.

I have not studied EM yet and I heard it is difficult... I am feeling all the classes I took teach me how to find the answer only, but they never teach me when and where I will need them. What I want to know is how these classes will apply in the real world.

Currently I am in my 3rd year of my B.E. in EE and I am really lost. What I learned from my school so far are, classes such as Linear System, Communication Theory, Digital Signal Processing, Microlectronics, Power, Control System, etc. I do learn about the basic theories and learn how to solve...

thank you again, after I worked it out, I got dP/dX = -0.5(V^2)[2(x+Z)]/(R+Y)[(R+Y)^2+(X+Z)^2]^2

so the real part is (R+Y)/[(R+Y)^2+(X+Z)^2]. can I take the derivative with respect with X? can I treat R,Y,Z as constant?

thanks for your hint again, now I got [(R+Y)-j(X+Z)]/[(R+Y)^2+(X+Z)^2]

this is what I did after your hint. VI becomes V^2/A+B, and V^2 is constant so I take it outside, leaving just 1/A+B for differentiation. 1/A+B = 1/R+jX+Y+jZ. now I am stuck. I don't know how to find dP/dX.

thank you for your response, could you be more specific? which part is the real part and which is the imaginery part?

Homework Statement On the first day of Electromagnetism class, the professor gave this problem to us to solve. I never learn about taking derivative of complex number. Can someone give me some hints? his problem was: Given P= 0.5 Re(I*V) I= V/(A+B) A= R+jX , B=Y+ jZ V is...

if 3 arent assigned specifically, then the answer is 10C3 x (8-1)! x 3! ?

Homework Statement how many ways can 10 people sit around a roundtable if 3 particular people sit together Homework Equations The Attempt at a Solution my attempt was (8-1)! x 3!

i am planning to go for a bachelor in electrical engineering, but I am not sure if it is right for solar power.

CUNY is rank 30 in math, nice

I like to draw and automobiles, what type of engineering suits best for me?

Oh, so i set a=0 to find max velocity, but then what do I do to find the max acceleration?