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Function `std.math.fma`

Returns (x * y) + z, rounding only once according to the current rounding mode.


						
				real fma
				(
				

				  real x,
				

				  real y,
				

				  real z
				

				) pure nothrow @nogc @safe;

BUGS

Not currently implemented - rounds twice.

Example

writeln(fma(0.0, 2.0, 2.0)); // 2.0
writeln(fma(2.0, 2.0, 2.0)); // 6.0
writeln(fma(real.infinity, 2.0, 2.0)); // real.infinity
assert(fma(real.nan, 2.0, 2.0) is real.nan);
assert(fma(2.0, 2.0, real.nan) is real.nan);

Authors

Walter Bright, Don Clugston, Conversion of CEPHES math library to D by Iain Buclaw and David Nadlinger

License

Boost License 1.0.