10.5. Mathematical Functions and Operators
Mathematical Operators
| Operator | Description | 
|---|---|
| + | Addition | 
| - | Subtraction | 
| * | Multiplication | 
| / | Division (integer division performs truncation) | 
| % | Modulus (remainder) | 
Mathematical Functions
- abs(x) → [same as input]
- Returns the absolute value of x. 
- cbrt(x) → double
- Returns the cube root of x. 
- ceil(x) → [same as input]
- This is an alias for ceiling(). 
- ceiling(x) → [same as input]
- Returns x rounded up to the nearest integer. 
- degrees(x) → double
- Converts angle x in radians to degrees. 
- e() → double
- Returns the constant Euler’s number. 
- exp(x) → double
- Returns Euler’s number raised to the power of x. 
- floor(x) → [same as input]
- Returns x rounded down to the nearest integer. 
- from_base(string, radix) → bigint
- Returns the value of string interpreted as a base-radix number. 
- ln(x) → double
- Returns the natural logarithm of x. 
- log2(x) → double
- Returns the base 2 logarithm of x. 
- log10(x) → double
- Returns the base 10 logarithm of x. 
- log(x, b) → double
- Returns the base b logarithm of x. 
- mod(n, m) → [same as input]
- Returns the modulus (remainder) of n divided by m. 
- pi() → double
- Returns the constant Pi. 
- pow(x, p) → double
- This is an alias for power(). 
- power(x, p) → double
- Returns x raised to the power of p. 
- radians(x) → double
- Converts angle x in degrees to radians. 
- rand() → double
- This is an alias for random(). 
- random() → double
- Returns a pseudo-random value in the range 0.0 <= x < 1.0 
- round(x) → [same as input]
- Returns x rounded to the nearest integer. 
- round(x, d) → [same as input]
- Returns x rounded to d decimal places. 
- sqrt(x) → double
- Returns the square root of x. 
- to_base(x, radix) → varchar
- Returns the base-radix representation of x. 
Trigonometric Functions
All trigonometric function arguments are expressed in radians. See unit conversion functions degrees() and radians().
- acos(x) → double
- Returns the arc cosine of x. 
- asin(x) → double
- Returns the arc sine of x. 
- atan(x) → double
- Returns the arc tangent of x. 
- atan2(y, x) → double
- Returns the arc tangent of y / x. 
- cos(x) → double
- Returns the cosine of x. 
- cosh(x) → double
- Returns the hyperbolic cosine of x. 
- sin(x) → double
- Returns the sine of x. 
- tan(x) → double
- Returns the tangent of x. 
- tanh(x) → double
- Returns the hyperbolic tangent of x. 
Floating Point Functions
- infinity() → double
- Returns the constant representing positive infinity. 
- is_finite(x) → boolean
- Determine if x is finite. 
- is_infinite(x) → boolean
- Determine if x is infinite. 
- is_nan(x) → boolean
- Determine if x is not-a-number. 
- nan() → double
- Returns the constant representing not-a-number.