Function librapid::atan(const mpfr&)# Defined in File multiprecTrig.cpp Function Documentation# mpfr librapid::atan(const mpfr &val)# Arctangent of a multiprecision floating point value: \( \tan^{-1} (x) \) See also tan(const mpfr &) Parameters val – The value to take the arctangent of Returns The arctangent of the value