POSVARDEF: Difference between revisions
Jump to navigation
Jump to search
mNo edit summary |
mNo edit summary |
||
| Line 11: | Line 11: | ||
[[REALVARDEF]] | [[REALVARDEF]] | ||
}} | }} | ||
[[Category:Declaration]][[Category: | [[Category:Declaration]][[Category:Definition]] | ||
Latest revision as of 17:50, 21 September 2018
Syntax
POSVARDEF symbol
Implemented in iMath since version 2.2.0 or earlier.
Explanation
Defines the symbol to be positive (and real-valued). This allows iMath to evaluate some functions immediately, e.g. absolute value.
Example
POSVARDEF x tells iMath that x always has a positive real value and therefore abs(x) = x.