How to write a function that plots a graph of another function's outputs for varying inputs to that function.

I need to write a function B that plots a graph of the output of a function A when one of its(A) input values varies continuously between two values (0,3) eg. When C(input value) = 0 plot output of A continuously until C = 3.

Answer 1

[Walter Roberson]

Mathworks works in finite precision, with only a finite number of representable numbers. It is not able to vary input continuously between two numbers, because "continuously" is infinite numbers.

x = linspace(0,3,10000);      %not continuous, just close together
plot(x, arrayfun(function_handle_for_a, x))