|
Routine
|
Use
|
.NET Framework equivalent
|
| abs | Return absolute value of int | System::Math::Abs |
| acos, acosf | Calculate arccosine | System::Math::Acos |
| asin, asinf | Calculate arcsine | System::Math::Asin |
| atan, atanf, atan2, atan2f | Calculate arctangent | System::Math::Atan, System::Math::Atan2 |
| atof, _atof_l, _wtof, _wtof_l | Convert character string to double-precision floating-point value | System::Convert::ToSingle, System::Convert::ToDouble |
| Bessel functions | Calculate Bessel functions _j0, _j1, _jn, _y0, _y1, _yn | Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples. |
| _cabs | Find absolute value of complex number | Not applicable. |
| ceil, ceilf | Find integer ceiling | System::Math::Ceiling |
| _chgsign, _chgsignl | Reverse sign of double-precision floating-point or long double-precision floating-point argument | Not applicable. |
| _clear87, _clearfp | Get and clear floating-point status word | Not applicable. |
| _control87, _controlfp, __control87_2, _controlfp_s | Get old floating-point control word and set new control-word value | Not applicable. |
| _copysign, _copysignl | Return one value with sign of another | Not applicable. |
| cos, cosf, cosh, coshf | Calculate cosine | System::Math::Cos, System::Math::Cosh |
| difftime | Compute difference between two specified time values | System::DateTime::Subtract |
| div | Divide one integer by another, returning quotient and remainder | Not applicable. |
| _ecvt, _ecvt_s | Convert double to character string of specified length | System::Convert::ToString |
| exp, expf | Calculate exponential function | System::Math::Exp |
| fabs, fabsf | Find absolute value | System::Math::Abs |
| _fcvt, _fcvt_s | Convert double to string with specified number of digits following decimal point | System::Convert::ToString |
| _finite | Determine whether given double-precision floating-point value is finite | System::Double::IsInfinity |
| floor, floorf | Find largest integer less than or equal to argument | System::Math::Floor |
| fmod, fmodf | Find floating-point remainder | System::Math::IEEERemainder |
| _fpclass | Return status word containing information on floating-point class | System::Double::IsInfinity, System::Double::IsNegativeInfinity, System::Double::IsPositiveInfinity, System::Double::IsNan |
| _fpieee_flt | Invoke user-defined trap handler for IEEE floating-point exceptions | Not applicable. |
| _fpreset | Reinitialize floating-point math package | |
| frexp | Calculate exponential value | Not applicable. |
| _gcvt, _gcvt_s | Convert floating-point value to character string | System::Convert::ToString |
| _hypot, hypotf | Calculate hypotenuse of right triangle | Not applicable. |
| _isnan | Check given double-precision floating-point value for not a number (NaN) | System::Double::IsNan |
| labs | Return absolute value of long | System::Math::Abs |
| ldexp | Calculate product of argument and 2 to specified power | System::Math::Pow |
| ldiv | Divide one long integer by another, returning quotient and remainder | Not applicable. |
| log, logf, log10, log10f | Calculate natural or base-10 logarithm. | System::Math::Log, System::Math::Log10 |
| _logb | Extract exponential value of double-precision floating-point argument | Not applicable. |
| _lrotl, _lrotr | Shift unsigned long int left (_lrotl) or right (_lrotr) | Not applicable. |
| _matherr | Handle math errors | Not applicable. |
| __max | Return larger of two values | System::Math::Max |
| __min | Return smaller of two values | System::Math::Min |
| modf, modff | Split argument into integer and fractional parts | Not applicable. |
| _nextafter | Return next representable neighbor | Not applicable. |
| pow, powf | Calculate value raised to a power | System::Math::Pow |
| printf, _printf_l, wprintf, _wprintf_l, printf_s, _printf_s_l, wprintf_s, _wprintf_s_l | Write data to stdout according to specified format | System::Console::Write, System::Console::WriteLine |
| rand, rand_s | Get pseudorandom number | System::Random Class |
| _rotl, _rotr | Shift unsigned int left (_rotl) or right (_rotr) | Not applicable. |
| _scalb | Scale argument by power of 2 | Not applicable. |
| scanf, wscanf, scanf_s, _scanf_s_l, wscanf_s, _wscanf_s_l | Read data from stdin according to specified format and write data to specified location | System::Console::Read, System::Console::ReadLine |
| _set_controlfp | set new control-word value | Not applicable. |
| sin, sinf, sinh, sinhf | Calculate sine or hyperbolic sine | System::Math::Sin, System::Math::Sinh |
| sqrt | Find square root | System::Math::Sqrt |
| srand | Initialize pseudorandom series | System::Random Class |
| _status87, _statusfp, _statusfp2 | Get floating-point status word | Not applicable. |
| strtod, _strtod_l, wcstod, _wcstod_l | Convert character string to double-precision value | System::Convert::ToDouble |
| tan, tanf, tanh, tanhf | Calculate tangent or hyperbolic tangent | System::Math::Tan, System::Math::Tanh |