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The Maxima on-line user's manual

Algebra Calculator

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Playback

Function: playback ()

expand(integrate(14*x*log(2*x), x, 1/2, 7));
expand(integrate(7/2*y*log(y), y, 1, 14));
f(y) := (7/2)*y^2*log(y) - (21/4)*y^2;
diff(f(y), y);
playback();

Function: playback (<n>)

Function: playback ([<m>, <n>])

Function: playback ([<m>])

Function: playback (input)

Function: playback (slow)

Function: playback (time)

Function: playback (grind) Displays input, output, and intermediate expressions, without recomputing them. playback only displays the expressions bound to labels; any other output (such as text printed by print or describe, or error messages) is not displayed. See also labels.

playback quotes its arguments. The quote-quote operator defeats quotation. playback always returns done.

playback () (with no arguments) displays all input, output, and intermediate expressions generated so far. An output expression is displayed even if it was suppressed by the $ terminator when it was originally computed.

playback (<n>) displays the most recent <n> expressions. Each input, output, and intermediate expression counts as one.

playback ([<m>, <n>]) displays input, output, and intermediate expressions with numbers from <m> through <n>, inclusive.

playback ([<m>]) is equivalent to playback ([<m>, <m>]); this usually prints one pair of input and output expressions.

playback (input) displays all input expressions generated so far.

playback (slow) pauses between expressions and waits for the user to press enter. This behavior is similar to demo. playback (slow) is useful in conjunction with save or stringout when creating a secondary-storage file in order to pick out useful expressions.

playback (time) displays the computation time for each expression.

playback (grind) displays input expressions in the same format as the grind function. Output expressions are not affected by the grind option. See grind.

Arguments may be combined, e.g., playback ([5, 10], grind, time, slow).

(%o1)                                true
(%i2) 

Related Examples

playback

a: 3;

playback(5);

Calculate

playback

a: 3;

playback;

Calculate

playback

a: 3;

playback(5);

Calculate

playback

a: 3;

playback;

Calculate