math
Mathematical operations and functions
Import
_ <- fat.math
Constants
- e, natural logarithm constant 2.71...
- maxInt, 9007199254740992
- minInt, -9007199254740992
- pi, ratio of circle to its diameter 3.14...
read more about number precision in FatScript
Basic functions
| Name | Signature | Brief |
|---|---|---|
| abs | (x: Number): Number | Return absolute value of x |
| ceil | (x: Number): Number | Return smallest integer >= x |
| floor | (x: Number): Number | Return largest integer <= x |
| isInf | (x: Number): Boolean | Return true if x is infinity |
| isNaN | (x: Any): Boolean | Return true if x is not a number |
| logN | (x: Number, base: Number = e): Number | Return logarithm of x |
| random | (): Number | Return pseudo-random, where 0 <= n < 1 |
| sqrt | (x: Number): Number | Return the square root of x |
| round | (x: Number): Number | Return the nearest integer to x |
Trigonometric functions
| Name | Signature | Brief |
|---|---|---|
| sin | (x: Number): Number | Return the sine of x |
| cos | (x: Number): Number | Return the cosine of x |
| tan | (x: Number): Number | Return the tangent of x |
| asin | (x: Number): Number | Return the arc sine of x |
| acos | (x: Number): Number | Return the arc cosine of x |
| atan | (x: Number, y = 1): Number | Return the arc tangent of x, y |
| radToDeg | (r: Number): Number | Convert radians to degrees |
| degToRad | (d: Number): Number | Convert degrees to radians |
Hyperbolic functions
| Name | Signature | Brief |
|---|---|---|
| sinh | (x: Number): Number | Return the hyperbolic sine of x |
| cosh | (x: Number): Number | Return the hyperbolic cosine of x |
| tanh | (x: Number): Number | Return the hyperbolic tangent of x |
Statistical functions
| Name | Signature | Brief |
|---|---|---|
| mean | (v: List/Number): Number | Return the mean of a vector |
| median | (v: List/Number): Number | Return the median of a vector |
| sigma | (v: List/Number): Number | Return the standard deviation of a vector |
| variance | (v: List/Number): Number | Return the variance of a vector |
| max | (v: List/Number): Number | Return maximum value in vector |
| min | (v: List/Number): Number | Return the minimum value in vector |
| sum | (v: List/Number): Number | Return the sum of vector |
Other functions
| Name | Signature | Brief |
|---|---|---|
| fact | (x: Number): Number | Return the factorial of x |
| exp | (x: Number): Number | Return e raised to the power of x |
| sigmoid | (x: Number): Number | Return the sigmoid of x |
| relu | (x: Number): Number | Return the ReLU of x |
Example
math <- fat.math # named import
math.abs(-52) # yields 52