Difference between revisions of "Manuals/calci/UNITSFAILTONULL"

Latest revision as of 04:54, 31 March 2020

UNITSFAILTONULL

UNITSFAILTONULL will return the result as false.
If $UNITSFAILTONULL$ is set to true, and a number does not have units that match during conversion, it is set to null.
$UNITSFAILTONULL$ by default is set to false.
In general, if a conversion fails, the original value with units are returned.
This behavior can be changed so that a unit conversion if not possible, would return a null value.
To do this, change the global variable UNITSFAILTONULL to true.

1m<>eor

1 m

UNITSFAILTONULL=true

1m<>eor

will now give null as the result.

UNITSFAILTONULL=false

1m<>eor

1 m

will be shown as the result.

@@ Line 2: / Line 2: @@
 ==Description==
-*This function will return the result as false.
+*UNITSFAILTONULL will return the result as false.
 *If <math>UNITSFAILTONULL</math> is set to true, and a number does not have units that match during conversion, it is set to null.
 *<math>UNITSFAILTONULL</math>  by default is set to false.
+*In general, if a conversion fails, the original value with units are returned.
+*This behavior can be changed so that a unit conversion if not possible, would return a null value.
+*To do this, change the global variable UNITSFAILTONULL to true.
+*The following will give 1m as the result.
+m<>eor
+m
+UNITSFAILTONULL=true
+m<>eor
+will now give null as the result.
+UNITSFAILTONULL=false
+m<>eor
+m
+will be shown as the result.
 ==Example==