function results into a vector

I have this code which I want to have output a vector which I can then plot versus the input but the answer Vreg comes out as a single number. How can I get the function to output a vector evaluated at each value of the input vector?

VL = 0:.1:500;
Vreg = [(230-(VL))/(VL)];
plot(VL,Vreg)

Answer 1

[the cyclist]

You need element-wise division. Try

Vreg = [(230-(VL))./(VL)];

See array vs. matrix operations in the documentation.

Answer 2

[David Hill]

You just need a dot!

Vreg = [(230-(VL))./(VL)];