in this problem, you will be creating the function globalmin that uses matlab to approximate the x and y coordinate of the global minimum of a function within a given domain.
inputs:
func - an arbitrary function. eg. @(x) x.^2 + 4
xstart - the first x value in the function domain
xend - the last x value in the function domain
dx - the x spacing in the function domain.
outputs:
xmin - the x-coordinate of the global minimum of the function within a given domain.
ymin - the global minimum of the function within a given domain.
function template
function [xmin, ymin] = globalmin(func, xstart, xend, dx) %insert code end
test examples
[xmin, xmax] = globalmin(@(x) x.^3/3-x, -1.5, 1.5, 0.01) should return [1 -0.6667].
but [xmin, xmax] = globalmin(@(x) x.^3/3-x, -3, 3, 0.01) should return [-3 -6].