How do I write a function with multiple out puts and inputs with varying times?
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For my question I have to write a function that will calculate the outputs of Vr and Vc in a series circuit. Im not even to sure on the equations to calculate this but i believe they are Vr = V*exp(-t/R*C) Vc = V*(1-exp(-t/R*C))
I have written the function as:
function [Vr, Vc] = RC(V, R, C, t)
Vr = V*exp(-t/R*C);
Vc = V*(1-exp(-t/R*C));
end
I then created a new script 'testRC.m' and wrote:
clear;
clc;
V = 9;
R = 4.7;
C = 220;
t = 0:5;
[Vr, Vc] = RC(V, R, C, t);
When I run the function I do not get the expected answer. Any help on this would be extremely appreciated as I am very new to matlab and need help, thanks in advance
1 个评论
Adam
2014-10-28
What do you mean by not the expected answer? Is it just incorrect maths or as your question title suggests are you not getting the right number of outputs?
When I quickly pasted your code in I get the two outputs you say you want and the input argument went in fine. I know nothing about series circuits to say if it is the correct answer, but if that is your question I would suggest you reword the question title a little.
采纳的回答
Hugo
2014-10-28
0 个投票
The problem is in the equation. The constant for the charge of the capacitor is R*C. Therefore, instead of writing
Vc = V*(1-exp(-t/R*C));
you should write
Vc = V*(1-exp(-t/ (R*C) ));
Notice the brackets around R*C.
Same thing in the other equations.
Hope this helps.
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