- The absolute value of a number
- Maximum and minimum of two numbers
- Rounding functions
- Remainder after division (Modulo operation)
- Powers and roots
- Exponential and logarithmic functions
- Trigonometric functions
- Hyperbolic functions
- Normality test for real numbers
- Random number generation
- Endianness control in integers
Powers and roots
The MQL5 API provides a generic function MathPow for raising a number to an arbitrary power, as well as a function for a special case with a power of 0.5, more familiar to us as the operation of extracting a square root MathSqrt.
To test the functions, use the MathPowSqrt.mq5 script.
double MathPow(double base, double exponent) ≡ double pow(double base, double exponent)
The function raises the base to the specified power exponent.
PRT(MathPow(2.0, 1.5)); // 2.82842712474619
|
double MathSqrt(double value) ≡ double sqrt(double value)
The function returns the square root of a number.
PRT(MathSqrt(2.0)); // 1.414213562373095
|
MQL5 defines several constants containing ready-made calculation values involving sqrt.
Constant |
Description |
Value |
---|---|---|
M_SQRT2 |
sqrt(2.0) |
1.41421356237309504880 |
M_SQRT1_2 |
1 / sqrt(2.0) |
0.707106781186547524401 |
M_2_SQRTPI |
2.0 / sqrt(M_PI) |
1.12837916709551257390 |
Here M_PI is the Pi number (π=3.14159265358979323846, see further along the section Trigonometric functions).
All built-in constants are described in the documentation.