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SYMBMATH.H16
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6.4.6 Switch Statement
The switch statement sets or changes the switch status. The
switch status is unchanged in memory until the new switch status is
assigned.
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Switch Action
lowercase=on convert letters into the lower-case letters.
lowercase=off not convert letters into the lower-case letters,
this is default.
output=basic output form is BASIC format, this is default.
output=fortran output form is FORTRAN format.
output=prolog output form is Prolog format (internal form).
output=twodim output form is two dimension.
output=off not display output.
output=on the same as ouput=basic
numerical=on convert numbers to floating-point numbers.
numerical=off not convert numbers to floating-point numbers,
this is default.
expand=on expansion. e.g. c*(a+b) to c*a+c*b.
expand=off disable expansion, this is default.
expexpand=on exponent expansion. e.g. c^(a+b) to c^a*c^b.
expexpand=off disable exponent expansion, this is default.
lnexpand=on log expand, e.g. ln(a*b) to ln(a)+ln(b)
lnexpand=off disable log expansion, this is default.
----------------------------------------------------------------------
When the switch lowercase = on, all letters are converted into
the lower-case letters so the upper- and lower- case letters are the
same, e.g. EXP(x) is the same as exp(x).
When the output is written to a disk file, it is recommended
to set the switch output=basic.