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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.
License:
Boost License 1.0.
Authors:
Walter Bright, Don Clugston, Conversion of CEPHES math library to D by Iain Buclaw and David Nadlinger

Source std/math/package.d