A variable is a sequence of letters, digits and underscores, the first of
which must
be a letter. CalcSharp supports user-defined variables and
has predefined frequently
used constants from mathematics, physics and informatics.
Examples:
MYVAR, myvar44, MY_var, A1, Q_123, PI__
More comprehensive list of mathematical constants ( thanks to
Anthony Felder and
Steven Finch )
can be found here.
Complete list of fundamental physical constants
can be
found here.