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/cmath/fma/

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fma - C++ Users

Returns x * y + z. The function computes the result without losing precision in any intermediate result. For arguments of type double, it generally executes about as fast as, or faster than, x*y+z. For arguments of type float, it generally executes about as fast as, or faster than, x*y+z.

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://cplusplus.com/reference/?sid=JJ2828

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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://cplusplus.com/reference/cmath/cos/

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cos - C++ Users

Returns the cosine 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. Cosine of x radians. double param, result; param = 60.0; result = cos ( param * PI / 180.0 );

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

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fabs - C++ Reference - cplusplus.com

Returns the absolute value of x: | x |. Header <tgmath.h> provides a type-generic macro version of this function. Value whose absolute value is returned. The absolute value of x. printf ("The absolute value of 3.1416 is %f\n", fabs (3.1416) ); printf ("The absolute value of -10.6 is %f\n", fabs (-10.6) ); return 0;

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