error with graphing exp function
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in my code I tried having e to some negative power and graph it but it's not working, any help?
r = 0.5; l=4;
%%given: A(1) and A(2) are two numbers from a vector, and r(1) and r(2) are two other numbers from another vector
vct = A(1)*exp(r(2)*x)+ A(2)*exp(r(1)*x);
x = 0:2:20
figure
expfunc = exp(-x*r/l) %%I want e^(-x*r/l) for that part
plot(x,vct/0.5*(1-expfunc)) %%overall equation should be: vct/0.5*(1-e^(-x*r/l))
7 个评论
madhan ravi
2019-4-11
r, l ?
James Tursa
2019-4-11
If x is a vector and r is a vector, what do you expect from the expression -x*r/l?
seldiora
2019-4-11
James Tursa
2019-4-11
This line makes x a vector:
>> x = 0:2:20
x =
0 2 4 6 8 10 12 14 16 18 20
Then you have text that says r is a two element vector since you use r(1) and r(2). But your code has r as a scalar. So which is it?
James Tursa
2019-4-11
I could fix your code so it didn't generate errors, but it might not be correct for the problem you are trying to solve. Can you give us the actual wording of the assignment?
seldiora
2019-4-11
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