OpenMusic Reference
om-
om-
(arithmetic module) -- returns the difference of two numbers or lists
Syntax
om- self num
Inputs
| name | data type(s) | comments |
|---|---|---|
| self | a number or tree | |
| num | a number or tree |
Output
| output | data type(s) | comments |
|---|---|---|
| first | a number or tree | returns the difference of the two products |
Description
This function subtracts one number or trees from another. The two arguments do not have to be of the same type; when subtracting a single number from a tree, the single number is subtracted from each of the elements of the tree. For example, subtracting 2 from (3 5) will yield (1 3). When subtracting one tree from another, elements with the same ordinal position are subtracted from each other. For example, subtracting (2 3) from (3 1) will yield (1 -2). If the two trees are not of the same length, the extra elements of the longer list are truncated. For example, subtracting (1 2 3) from (2 3 1 1 4) will yield (1 1 -2). These rules apply within nestings as well. For example, taking (1 2) from (1 (3 1)) will yield (0 (1 -1)), since the element 2 in the first list is paired with element (3 1) in the second.
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