Previous: Share, Up: Miscellaneous Options [Contents][Index]
When asksign
is called,
askexp
is the expression asksign
is testing.
At one time, it was possible for a user to inspect askexp
by entering a Maxima break with control-A.
Default value: i
genindex
is the alphabetic prefix used to generate the
next variable of summation when necessary.
Default value: 0
gensumnum
is the numeric suffix used to generate the next variable
of summation. If it is set to false
then the index will consist only
of genindex
with no numeric suffix.
gensym()
creates and returns a fresh symbol.
The name of the new symbol is the concatenation of a prefix, which defaults to "g", and a suffix, which is an integer that defaults to the value of an internal counter.
If x is supplied, and is a string, then that string is used as a prefix instead of "g" for this call to gensym only.
If x is supplied, and is a nonnegative integer, then that integer, instead of the value of the internal counter, is used as the suffix for this call to gensym only.
If and only if no explicit suffix is supplied, the internal counter is incremented after it is used.
Examples:
(%i1) gensym(); (%o1) g887 (%i2) gensym("new"); (%o2) new888 (%i3) gensym(123); (%o3) g123
Default value: false
Package designers who use save
or translate
to create packages
(files) for others to use may want to set packagefile: true
to prevent
information from being added to Maxima’s information-lists (e.g.
values
, functions
) except where necessary when the file is
loaded in. In this way, the contents of the package will not get in the user’s
way when he adds his own data. Note that this will not solve the problem of
possible name conflicts. Also note that the flag simply affects what is output
to the package file. Setting the flag to true
is also useful for
creating Maxima init files.
Removes the values of user variables name_1, …, name_n (which can be subscripted) from the system.
remvalue (all)
removes the values of all variables in values
,
the list of all variables given names by the user
(as opposed to those which are automatically assigned by Maxima).
See also values
.
Transforms expr by combining all terms of expr that have
identical denominators or denominators that differ from each other by
numerical factors only. This is slightly different from the behavior
of combine
, which collects terms that have identical denominators.
Setting pfeformat: true
and using combine
yields results similar
to those that can be obtained with rncombine
, but rncombine
takes
the additional step of cross-multiplying numerical denominator factors.
This results in neater forms, and the possibility of recognizing some
cancellations.
load("rncomb")
loads this function.
Specifies that if any of function_1, …, function_n are
referenced and not yet defined, filename is loaded via load
.
filename usually contains definitions for the functions specified,
although that is not enforced.
setup_autoload
does not work for memoizing functions
.
setup_autoload
quotes its arguments.
Example:
(%i1) legendre_p (1, %pi); (%o1) legendre_p(1, %pi) (%i2) setup_autoload ("specfun.mac", legendre_p, ultraspherical); (%o2) done (%i3) ultraspherical (2, 1/2, %pi); Warning - you are redefining the Macsyma function ultraspherical Warning - you are redefining the Macsyma function legendre_p 2 3 (%pi - 1) (%o3) ------------ + 3 (%pi - 1) + 1 2 (%i4) legendre_p (1, %pi); (%o4) %pi (%i5) legendre_q (1, %pi); %pi + 1 %pi log(-------) 1 - %pi (%o5) ---------------- - 1 2
Prints elements of a list enclosed by curly braces { }
,
suitable as part of a program in the Tcl/Tk language.
tcl_output (list, i0, skip)
prints list, beginning with element i0 and printing elements
i0 + skip
, i0 + 2 skip
, etc.
tcl_output (list, i0)
is equivalent to tcl_output (list, i0, 2)
.
tcl_output ([list_1, ..., list_n], i)
prints the i’th elements of list_1, …, list_n.
Examples:
(%i1) tcl_output ([1, 2, 3, 4, 5, 6], 1, 3)$ {1.000000000 4.000000000 } (%i2) tcl_output ([1, 2, 3, 4, 5, 6], 2, 3)$ {2.000000000 5.000000000 } (%i3) tcl_output ([3/7, 5/9, 11/13, 13/17], 1)$ {((RAT SIMP) 3 7) ((RAT SIMP) 11 13) } (%i4) tcl_output ([x1, y1, x2, y2, x3, y3], 2)$ {$Y1 $Y2 $Y3 } (%i5) tcl_output ([[1, 2, 3], [11, 22, 33]], 1)$ {SIMP 1.000000000 11.00000000 }
Previous: Share, Up: Miscellaneous Options [Contents][Index]