Editing JOSS (section)

===Functions===
The language contained the following built-in functions:

====Math====
* {{code|sin()}} - Sine of an angle given in radians
* {{code|cos()}} - Cosine
* {{code|arg()}} - Takes X and Y values of a point and returns the angle between that point and the x-axis
* {{code|log()}} - Naperian log
* {{code|exp()}} - Natural base to the power of the argument
* {{code|sqrt()}} - Square root
* {{code|sgn()}} - Sign of the argument, 0 returns 0, -ve values -1, +ve +1
* {{code|ip()}} - Integer part of the argument, {{code|ip(22026.4658)}} returns 22026
* {{code|fp()}} - Fractional part, returns .4658
* {{code|dp()}} - Digit part, returns 2.20264658
* {{code|ep()}} - Exponent part, returns 4, the location of the decimal

====Boolean====
* {{code|tv()}} - Truth value, returns 1 if the expression is true, 0 otherwise

====Looping functions====
JOSS also defined a number of functions that performed looping internally, in order to avoid the programmer having to write a {{code|For}} loop to perform simple tasks like summing a series of numbers. The parameters could be either a list of simple expressions separated by commas, or a range construct whose command could be any statement or function call.

* {{code|max()}} - Maximum value of the provided expressions
* {{code|min()}} - Minimum
* {{code|sum()}} - Sum
* {{code|prod()}} - Product
* {{code|first()}} - First item in the list that matches a condition, returns that result