Table 5-2. Mathematical Functions
| Function | Returns | Description | Example |
|---|---|---|---|
| dexp(float8) | float8 | raise e to the specified exponent | dexp(2.0) |
| dpow(float8,float8) | float8 | raise a number to the specified exponent | dpow(2.0, 16.0) |
| float(int) | float8 | convert integer to floating point | float(2) |
| float4(int) | float4 | convert integer to floating point | float4(2) |
| integer(float) | int | convert floating point to integer | integer(2.0) |