Math

Math expressions are evaluated using the {! expr} helper. They have the following rules:

• Variables are either non-numeric values (eg. abc) or keys surrounded by brackets (eg. [x] or [0])
• Operations (eg. + - etc), found below, follow common order-of-operations
• Parenthesis can be used to group evaluations
• The result will use the minimum number of decimals to represent the value
• The formula can't reference other expression helpers

Examples

Warning

A common error is to reference matches using the expression syntax of {0}, which won't compile. Assure you are using the formula syntax of [x] or [0]

If x=4, then the following will evaluate:

{! 2+2} => 4
{! 2 * x} => 8
{! [x] * 4} => 16
{! abs(-4)} => 4
{! (2+2)*3} => 12
{! 2(1+1) } => 4

Operations

Binary

Type	Operators
Basic	+ - * / ^
Bit	<< >> & |
Comparison	= <= >= < >
Combiners	&& ||

Unary

For single-character unary expressions, they can be applied directly prior to the value, eg -x or !x. For more complex expressions, they need to be followed by a group, eg. cos(x) or abs(x+2)

Type	Operator
Basic	- abs
Trig	sqrt sin asin cos acos tan atan
Rounding	floor ceil round
Log	exp exp2 log log10 log2
Comparison	! (binary not)

Formats

Supports the following number formats:

Format	Prefix	Example
Base 10	-	123.456
Binary	0b	0b1101
Hex	0x	0x1BC