Simulistics

subtotals function

Takes an array of numeric values, and returns an array containing the running totals from summing the elements in the original array.

Example:

subtotals([1,9,2,10,3,8,5]) -> [1,10,12,22,25,33,38]

In: Contents >> Working with equations >> Functions >> Built-in functions

first function

first(T)

Takes an argument T that is a member of an enumerated type, and returns "true" if it is the first member of its type, and "false" otherwise.

Input: enumerated type member, or array of enumerated type members

Result: boolean, or array of boolean values

Examples:

If enumerated type "fruit" is defined as "apple", "grape", "banana":

first("apple") --> "true"

sgn function

sgn(X)

Returns -1 if X is negative, or 1 if X is zero or positive

Input: numeric, or array of numeric values

Result: integer, or array of integer values

Examples:

sgn(1.9) --> 1

sgn(-1.1) --> -1

Here is my first set of generated names (11 Nov 2008)