How to plot several unit steps in a graph without doing it manually?

Question

MathNemesis 2021-10-15

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1564411-how-to-plot-several-unit-steps-in-a-graph-without-doing-it-manually

评论： MathNemesis 2021-10-15

Hello!

So im currently having some problems with plotting. I have a function that produces my step answer, I now want to plot the results from the function. I have tried done it manually, for example like having it in this form:

y_4 = y_step_4(t);
y_8 = y_step_8(t);
y_53 = y_step_53(t);
hold on;
plot(t,y_4)
plot(t,y_8)
hold off;
function y = y_step4(t)
y = 1 - 2.t*.exp(.2.t);
end
function y = y_step8(t) etc etc

However, this is not a good approach, how would be a better approach to reduce the tedious work of manually plotting it?

This is currently how the code looks like:

%Creates a unit step 
create_y_step(4)
function H = transferH(K)
    syms s;
    % Declaring transfer function G(s)
    G = 1/(s*(s+4));
    H = (G*K)/(1+G*K);
end
function y = create_y_step(K)
    syms s t
    H = transferH(K);
    y = ilaplace(H*(1/s)); %Unit step
end 
%syms t s K
% G = 1/(s*(s+4))
% H = (G*K)/(1+G*K)
% y_step = ilaplace(H*1/s)