show maximum value only

[evantri]

this is my nested loop to only show maximum z value only, but it always shows the last value of z. Could someone help me please?

double x;
double y;
double z;
int maxz = INT_MIN;

for (x = 5.0;x >= 1.0;x--)
{
for (y = 5.0;y >= 1.0;y--)
{
z = x * y;
if (z > maxz)
{
maxz = z;
}
}
}
printf(max z is %.2lf\n",z);

another question, Can i use INT_MIN value to compare double type variable instead?

[Banfa]

You are print z instead of maxz in the printf statement.

And I've have thought DBL_MIN would be a better constant to use, available in float.h


Using doubles and floats as loop control variables is flaky at best due to the inaccurate nature of floating point types.

[evantri]

I'm sorry, but could you give me the complete code please. I've tried to do that but it still does not work. Sorry for bothering you, I'm new at C so I'm still pretty crappy in this language. Thanks

[Banfa]

I'm sorry, but could you give me the complete code please. I've tried to do that but it still does not work. Sorry for bothering you, I'm new at C so I'm still pretty crappy in this language. Thanks

I would have thought you could change z to zmax in the printf statement yourself. Position the cursor after the z and type m a x

If you are refering to

"Can i use INT_MIN value to compare double type variable instead?"

This does not really make sense but since you are using doubles I though the using DBL_MIN (the minimum value a double can hold) rather than INT_MIN (the minimum value an int can hold and about 10e300 time larger then DBL_MIN) would be better.

I helpfully told you that DBL_MIN is defined in float.h all you have to do is include it at the top of your file. Something you must have already done with limits.h to be using INT_MIN.