How do I write a function with multiple out puts and inputs with varying times?

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

[Adam]

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.

Answer 1

[Hugo]

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.

[Jim Hamill]

Thanks very much, I am now only getting the answers for Vr displayed in the command window, do you know how I can have both output answers displayed?