Float and integer arithmetic follow two different paradigms

Automated excerpt

Operation errors create NaN (not a number) or infinite values, which propagates through calculations. For example, the largest 32-bit float (somewhere around 3. 4 \times 10^{38}) divided by a number below 1 (for example y=0. 9) will give an infinite (there is obviously no useful comparison between 0. 9 and FLT_EPSILON possible here). Many explicit checks needed when NaN, also propagate through the arithmetic operations in reasonable ways.

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