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manual:Calculations
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manual:Calculations [2018/05/16 23:21] JMichaelTX |
manual:Calculations [2019/06/17 23:45] peternlewis [Overview] |
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| ===== Overview ===== | ===== Overview ===== | ||
| - | Keyboard Maestro supports calculations in almost any numeric [[/Text_Fields|text fields]]. For example you can Pause for "60*Time in Minutes". Calculations can also use comma separated lists of numbers as arrays, and can return such arrays, so you can operate on frames and points. Numeric fields often start small with up/down step arrows, but if you type anything other than a number they will expand to allow a more complex expression to be entered. You can tell that a field accepts calculations because a small BUTTON{{{C}}} shows in the field while editing it. | + | Keyboard Maestro supports calculations in almost any numeric [[/Text_Fields|text fields]]. For example you can Pause for "60*Time in Minutes". Calculations can also use comma separated lists of numbers as arrays, and can return such arrays, so you can operate on rectangle frames and points. Numeric fields often start small with up/down step arrows, but if you type anything other than a number they will expand to allow a more complex expression to be entered. You can tell that a field accepts calculations because a small BUTTON{{{C}}} shows in the field while editing it. |
| ===== Examples ===== | ===== Examples ===== | ||
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| Operators based on precedence from lowest to highest are: | Operators based on precedence from lowest to highest are: | ||
| - | | Array Separator (`,`)\\ FIXME -- this is NOT an //operator// IMO. | Allows a text Variable, which has comma separated values, to work somewhat like an Array.\\ Assume `MyKMVariable` contains "value1,value2,value3".\\ Then `MyKMVariable[2]` returns "value2". | | + | | Array Separator (`,`) | Allows a text Variable, which has comma separated values, to work somewhat like an Array.\\ Assume `MyKMVariable` contains "value1,value2,value3".\\ Then `MyKMVariable[2]` returns "value2". | |
| | Ternary Operator (`?`) | a=b ? 3 : 4 | | | Ternary Operator (`?`) | a=b ? 3 : 4 | | ||
| | Bitwise OR (`|`), Bitwise AND (`&`) and Bitwise XOR | operators | | | Bitwise OR (`|`), Bitwise AND (`&`) and Bitwise XOR | operators | | ||
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| | Power Operator (`^`) | exponentiation | | | Power Operator (`^`) | exponentiation | | ||
| | Unary Prefix Operators (`√`, `-`, `( )` ) | square root, negation, sub-expressions | | | Unary Prefix Operators (`√`, `-`, `( )` ) | square root, negation, sub-expressions | | ||
| - | | functions\\ FIXME -- While technically Functions are operators, it confusing to most users to list here since everywhere else in KM they are separated. | a large variety of functions | | + | | [[:Functions|Functions]] | a large variety of functions | |
| - | | Numbers and Variables or Array Accesses (5,$5A,0x50,8#007,Variable,Variable[5])\\ FIXME -- this is clear as mud. | identifiers and values | | + | | Numbers and Variables or Array Accesses (5,$5A,0x50,8#007,Variable,Variable[5]) | identifiers and values | |
| | Unary Postfix Operators (`!,%,°`)) | factorial, percent, degrees | | | Unary Postfix Operators (`!,%,°`)) | factorial, percent, degrees | | ||
| + | |||
| + | Numbers are in decimal by default, but may use base 16 if they start with `$` or `0x` (eg $5A or 0x5A), or may start with a specific base followed by a `#` (eg 8#007). | ||
| + | |||
| + | [[Variables|Variables]] can be used if they contain numeric expressions, including an *array* of numbers separated by commas, in which case you can use an array index to select the desired number. | ||
| You can use either `=` or `==` (v8+) for testing for equality. | You can use either `=` or `==` (v8+) for testing for equality. | ||
| Operators and functions must be in uppercase to minimize conflict with variables. | Operators and functions must be in uppercase to minimize conflict with variables. | ||
| - | |||
| ===== Functions ===== | ===== Functions ===== | ||
manual/Calculations.txt · Last modified: 2023/10/02 00:38 by peternlewis
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