Rounding Error Prevention

Question

I just read about rounding errors in C ++. So, if I am doing a program with intensive mathematical computation (or any important calculations), should I just reset the tooltips and use only doubles, or is there an easier way to prevent rounding errors?

Answer 1

Mandatory lecture: What every programmer should know about floating point arithmetic .

Also try reading the IEEE floating point standard .

You will always have rounding errors. If you do not use a library of arbitrary precision infin, gmplib. , .

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, float double, . Valgrind (grep float)...

Answer 2

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