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Function std.math.operations.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
Copyright © 1999-2022 by the D Language Foundation | Page generated by ddox.