cos vs cosf Syntax Copy double cos double x float cosf float x long double cosl long double x define cos X Requires C11 or higher float cos float x C only
Possible output Typical usage std cos pi 3 0 5 your cos pi 3 0 5 std cos pi 2 6 123233996e 17 your cos pi 2 3 373452105e 15 std cos DESCRIPTION The cos and cosf functions compute the cosine of x measured in radians A large magnitude argument may yield a result with little or no significance
cos vs cosf
cos vs cosf
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Parameters arg floating point value representing angle in radians Return value If no errors occur the cosine of arg cos arg in the range 1 1 is returned The result Numerics Common mathematical functions 1 3 Computes the cosine of arg measured in radians 4 Type generic macro If the argument has type long double cosl is called
From cppreference cpp numeric mathcpp numeric math C The cosf and cosl functions are added for alignment with the ISO IEC 9899 1999 standard The DESCRIPTION RETURN VALUE ERRORS and APPLICATION
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Acos acosf acosl C 11 C 11 computes arc cosine arccos x function cos std complex computes cosine of a complex number cos z function template It specifically operates on long double data types offering higher precision and wider range compared to double or float Usage include long double result std
1 Answer Sorted by 3 There is really no need to have the cast when calling sin In fact it would be counterproductive if you d use the header that comes Fastest depends on your needs Here is a cosine implementation for a specific case of 1 1 input range 0 078 ULPS average distance from std cos 1 ULPS
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cos vs cosf - Parameters arg floating point value representing angle in radians Return value If no errors occur the cosine of arg cos arg in the range 1 1 is returned The result