In Malsys there are two types of predefined constants.
Built-in compiler constants
Following constants are recognized by the compiler though it is not possible to change their value. Their names are case-sensitive.
|NaN||NaN||Not a number.|
Constants from standard library
This group of constants is defined in the same way how user can define global constants. They are case-sensitive and they can be redefined (overlaid) by user-defined constants.