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29 lines
1.0 KiB
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29 lines
1.0 KiB
Markdown
---
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layout: doc_page
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---
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This expression language supports the following operators (listed in decreasing order of precedence).
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|Operators|Description|
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|---------|-----------|
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|!, -|Unary NOT and Minus|
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|^|Binary power op|
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|*, /, %|Binary multiplicative|
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|+, -|Binary additive|
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|<, <=, >, >=, ==, !=|Binary Comparison|
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|&&,\|\||Binary Logical AND, OR|
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Long and double data types are supported. If a number contains a dot, it is interpreted as a double, otherwise it is interpreted as a long. That means, always add a '.' to your number if you want it intepreted as a double value.
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Expressions can contain variables. Variable names may contain letters, digits, '\_' and '$'. Variable names must not begin with a digit.
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For logical operators, a number is true if and only if it is positive. (0 means false)
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Also, the following in-built functions are supported.
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|name|description|
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|----|-----------|
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|sqrt|sqrt(x) would return square root of x|
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|if|if(predicate,then,else) returns 'then' if 'predicate' evaluates to a positive number, otherwise it returns 'else'|
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