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COMPLEX(3) FreeBSD Library Functions Manual COMPLEX(3) NAME complex - complex arithmetic LIBRARY Math Library (libm, -lm) SYNOPSIS #include <complex.h> DESCRIPTION These functions support complex arithmetic in the C math library. LIST OF FUNCTIONS Each of the following double complex functions has a float complex counterpart with an `f' appended to the name and a long double complex counterpart with an `l' appended. As an example, the float complex and long double complex counterparts of double cabs(double complex z) are float cabsf(float complex z) and long double cabsl(long double complex z), respectively. Absolute-value Functions Name Description cabs complex absolute value (i.e., norm, modulus, magnitude) csqrt complex square root Exponential Function Name Description cexp exponential base e Natural logarithm Function Name Description clog natural logarithm Manipulation Functions Name Description carg compute the argument (i.e., phase angle) cimag compute the imaginary part conj compute the complex conjugate cproj compute projection onto Riemann sphere creal compute the real part Trigonometric and Hyperbolic Functions Name Description cacos arc cosine cacosh arc hyperbolic cosine casin arc sine casinh arc hyperbolic sine catan arc tangent catanh arc hyperbolic tangent ccos cosine ccosh hyperbolic cosine cpow power function csin sine csinh hyperbolic sine ctan tangent ctanh hyperbolic tangent SEE ALSO fenv(3), ieee(3), math(3), tgmath(3) ISO/IEC 9899:TC3, http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1256.pdf. STANDARDS The <complex.h> functions described here conform to ISO/IEC 9899:1999 ("ISO C99"). BUGS The power functions, cpowf,(cpow), and cpowl(), are implemented, but the code was neither reviewed nor tested. FreeBSD 14.1-RELEASE-p8 November 3, 2021 FreeBSD 14.1-RELEASE-p8