DEFINE

Allows a number to be associated with a character string, such that the character string can be used in input decks in place of the  number. The keyword remove in the third argument will remove a defined variable from the stack of defined variables.

 FORMAT:

define / name / value_real
define / name / value_integer
define / name / value_character
define / name / remove

EXAMPLE:

define / nx / 3
define / ny / 4
define / nz / 5
define / bottom / 0.1
define / top / 4.0
define / left / 9.8
define / type / reflect

surface/s1/reflect/box/0.0,left,bottom/1.0,right,top
rz/xyz/nx/nz/0.0,left,bottom/1.0,right,top/1,1,1

define / top / 5.0
surface/s1/reflect/box/0.0,left,bottom/1.0,right,top
rz/xyz/nx/nz/0.0,left,bottom/1.0,right,top/1,1,1

define / nx / remove
define / ny / remove
define / nz / remove