_cadd _cadd_sub _cdadd _cdadd_sub _cddiv _cddiv_sub _cdiv _cdiv_sub _cdmul _cdmul_sub _cdpow _cdpow_sub _cdsub _cdsub_sub _cipow _cipow_sub _cminus _cminus_sub _cmplx _cmplx_sub _cmul _cmul_sub _conj_sub _cpolar _cpolar_sub _cpow_sub _cproj_sub _csub _csub_sub _dcdiv _dcdiv_sub _dcsub _dcsub_sub

_cminus() double _Complex _cminus ( double _Complex  a ) Sign inversion of complex number Purpose Inverts sign of complex number. Returns -a. Parameters [in] a Complex number a.