cplusplus reference cmath - PrivacyWall

https://cplusplus.com/reference/cmath/

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<cmath> (math.h) - C++ Users

Header <cmath> declares a set of functions to compute common mathematical operations and transformations: Bitmask value with the possible values math_errhandling can take. Each, if defined, identifies for which type fma is at least as efficient as x*y+z. The possible values returned by fpclassify. Special values the ilogb function may return.

https://en.cppreference.com/w/cpp/header/cmath

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Standard library header <cmath> - Reference

This header was originally in the C standard library as <math.h>. This header is part of the numeric library.

https://legacy.cplusplus.com/reference/cmath/log/

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log - C++ Reference - cplusplus.com

Returns the natural logarithm of x. The natural logarithm is the base-e logarithm: the inverse of the natural exponential function (exp). For common (base-10) logarithms, see log10. Header <tgmath.h> provides a type-generic macro version of this function. Value whose logarithm is calculated. If the argument is negative, a domain error occurs.

https://cplusplus.com/reference/cmath/floor/

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floor - C++ Users

Rounds x downward, returning the largest integral value that is not greater than x. Header <tgmath.h> provides a type-generic macro version of this function. Value to round down. The value of x rounded downward (as a floating-point value). printf ( "floor of 2.3 is %.1lf\n", floor (2.3) ); printf ( "floor of 3.8 is %.1lf\n", floor (3.8) );

https://en.cppreference.com/w/cpp/numeric/math

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Common mathematical functions - cppreference.com

Defined in header <cmath> HUGE_VALF HUGE_VAL HUGE_VALL (C++11) (C++11) indicates the overflow value for float, double and long double respectively (macro constant) INFINITY (C++11) evaluates to positive infinity or the value guaranteed to overflow a float (macro constant) NAN (C++11) evaluates to a quiet NaN of type float (macro constant) math_errhandling MATH_ERRNO MATH_ERREXCEPT (C++11) (C++ ...

https://cplusplus.com/reference/

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Reference - C++ Users

Provides functionality to use an abstraction called streams specially designed to perform input and output operations on sequences of character, like files or strings. Work is under progress to update the whole reference to the latest standard. To check the status of each header, see Update progress.

https://legacy.cplusplus.com/reference/cmath/tan/

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tan - C++ Reference - cplusplus.com

Returns the tangent of an angle of x radians. Header <tgmath.h> provides a type-generic macro version of this function. Value representing an angle, expressed in radians. One radian is equivalent to 180/PI degrees. Tangent of x radians. double param, result; param = 45.0; result = tan ( param * PI / 180.0 );

https://en.cppreference.com/w/

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cppreference.com

C reference C89, C95, C99, C11, C17, C23 │ Compiler support C99, C23. Language. Basic concepts Keywords Preprocessor Expressions Declaration Initialization Functions Statements. Headers. Type support. Program utilities. Variadic functions. Diagnostics library. Dynamic memory management. Strings library . Null-terminated strings: byte − multibyte − wide. Algorithms library. Numerics ...

https://cplusplus.com/reference/clibrary/

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C library - C++ Users

wchar_t, char16_t, char32_t and bool are fundamental types in C++ and therefore are not defined in the corresponding header where they appear in C. The same applies to several macros in the header <iso646.h>, which are keywords in C++.

https://en.cppreference.com/w/cpp

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C++ reference - cppreference.com

C++ reference. From cppreference.com C++. Compiler support: Freestanding and hosted: Language: Standard library: Standard library headers: Named requirements: Feature test macros (C++20) Language support library: Concepts library (C++20) Diagnostics library: Memory management library: Metaprogramming library (C++11) General utilities library: Containers library: Iterators library: Ranges ...

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