minimizer

Minimizer is another faculty project (from the area of operational research) to find the minimum/maximum value of a bi-dimensional function (ie. z = f(x,y) ). This is a windows executable (console).

The input is a text file (called problem file), and since the sources are not available for this program, here you can see the structure of the problem file:

var x from -4 to 4

var y from -4 to 4

function f(x,y)= x*x + y*x*x - 2*x * y + 2

restriction  2*x-3*x*x-y  >  0

restriction  (x-1)*(x+1)-y>0

restriction x-4<0

result is min f

So as you can see: firstly you define the intervals for the variables, then you define the function f(x,y) and the restrictions, and finally what is the result: min or max.

The result of the problem will be a bitmap file (.BMP extension).

By the way, the result for the problem above can be seen here:

 Unfortunately in the last decades I might have misplaced the sources for this project, can't find them anywhere, but when I find them I will update this site.