Creates an object of the form:
x[i][j] - floating point array.
m[i] - number of elements in x[i].
n - number of elements in x.
x = 7 1.3 2
x = 4.2 -19
x = -3 -2 1.4 18.5
m = 3
m = 0
m = 2
m = 4
n = 4
// overloaded constructor. commented out so that class float2.h can
// be included without worrying about float2.h, I think.
for some reason, code bombs when this line is included.
for (int i=0; i < n; i++) delete  x[i];
delete  x;
delete  m;
void init_float2(int n, int* m, double** x);