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The Maxima on-line user's manual

Algebra Calculator

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Macroexpand1 Calculator

Macroexpand1

Function: macroexpand1 (<expr>) Returns the macro expansion of <expr> without evaluating it, when expr is a macro function call. Otherwise, macroexpand1 returns <expr>.

macroexpand1 quotes its argument. However, if the expansion of a macro function call has side effects, those side effects are executed.

If the expansion of <expr> yields another macro function call, that macro function call is not expanded.

See also ::=, macros, and macroexpand.

Examples

          (%i1) g (x) ::= x / 99;
                                              x
          (%o1)                      g(x) ::= --
                                              99
          (%i2) h (x) ::= buildq ([x], g (x - a));
          (%o2)            h(x) ::= buildq([x], g(x - a))
          (%i3) a: 1234;
          (%o3)                         1234
          (%i4) macroexpand1 (h (y));
          (%o4)                       g(y - a)
          (%i5) h (y);
                                      y - 1234
          (%o5)                       --------
                                         99

(%o1)                                true
(%i2) 

Macroexpand1 Example

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