if i had

`x = -10:0.1:10;f1 = trapmf(x,[-2 0 0 2]);`

how do i save the (x, f1) values of each iterations using the for loop?

I'm thinking it starts with something like

`for i = 1:length(x) a = x(i); b = f1(i);end`

but this will only give me a & b to be 1 value not a vector of length(x)

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