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Module `std.math`

Contains the elementary mathematical functions (powers, roots, and trigonometric functions), and low-level floating-point operations. Mathematical special functions are available in std.mathspecial.


Category	Members
Constants	E PI PI_2 PI_4 M_1_PI M_2_PI M_2_SQRTPI LN10 LN2 LOG2 LOG2E LOG2T LOG10E SQRT2 SQRT1_2
Algebraic	abs fabs sqrt cbrt hypot poly nextPow2 truncPow2
Trigonometry	sin cos tan asin acos atan atan2 sinh cosh tanh asinh acosh atanh
Rounding	ceil floor round lround trunc rint lrint nearbyint rndtol quantize
Exponentiation & Logarithms	pow powmod exp exp2 expm1 ldexp frexp log log2 log10 logb ilogb log1p scalbn
Remainder	fmod modf remainder remquo
Floating-point operations	approxEqual feqrel fdim fmax fmin fma isClose nextDown nextUp nextafter NaN getNaNPayload cmp
Introspection	isFinite isIdentical isInfinity isNaN isNormal isSubnormal signbit sgn copysign isPowerOf2
Hardware Control	IeeeFlags ieeeFlags resetIeeeFlags FloatingPointControl

The functionality closely follows the IEEE754-2008 standard for floating-point arithmetic, including the use of camelCase names rather than C99-style lower case names. All of these functions behave correctly when presented with an infinity or NaN.

The following IEEE 'real' formats are currently supported:

64 bit Big-endian 'double' (eg PowerPC)
128 bit Big-endian 'quadruple' (eg SPARC)
64 bit Little-endian 'double' (eg x86-SSE2)
80 bit Little-endian, with implied bit 'real80' (eg x87, Itanium)
128 bit Little-endian 'quadruple' (not implemented on any known processor!)
Non-IEEE 128 bit Big-endian 'doubledouble' (eg PowerPC) has partial support

Unlike C, there is no global 'errno' variable. Consequently, almost all of these functions are pure nothrow.

Authors

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

License

Boost License 1.0.

API Documentation

Module std.math

Authors

License

Module `std.math`