fma() [15/17]

template<typename Ta , typename Tb , require_all_arithmetic_t< Ta, Tb > * = nullptr>

var stan::math::fma ( Ta &&  x, Tb &&  y, const var &  z  )

inline

The fused multiply-add function for two values and a variable, and value (C99).

This function returns the product of the first two arguments plus the third argument.

The derivative is

\(\frac{\partial}{\partial z} (x * y) + z = 1\).

Template Parameters

Ta	type of the first multiplicand
Tb	type of the second multiplicand

Parameters

x	First multiplicand.
y	Second multiplicand.
z	Summand.

Returns

Product of the multiplicands plus the summand, ($a * $b) + $c.

Definition at line 160 of file fma.hpp.