Constants
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Definitions for Constants
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 -- Variable: E
     - The base of natural logarithms, e, is represented in MACSYMA as %E.

 -- Variable: FALSE
     - the Boolean constant, false. (NIL in LISP)

 -- Variable: MINF
     - real minus infinity.

 -- Variable: PI
     - "pi" is represented in MACSYMA as %PI.

 -- Variable: TRUE
     - the Boolean constant, true. (T in LISP)