From Jason Turner

Ep 228: C++20's (High Precision) Mathematical Constants

2020-07-13 4:26 13,536 views 531 likes
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Summary

This episode introduces the new mathematical constants provided in C++20 through the header. Jason demonstrates the new std::numbers namespace which provides high-precision mathematical constants like pi, e, log2e, and log10e with different precision levels (float, double, long double). Unlike the older M_PI macro from C, these new constants are properly typed, constexpr-compatible, and available at varying precision levels to match application needs.

Related C++ Standard Sections

This episode covers topics found in these sections of the C++ standard:

Resources

Tags

C++20 numbers constants mathematical-constants pi constexpr templates