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Asked: 2026-06-15T17:29:10+00:00

I’m using http://www.solve-et-coagula.com/As3Lisp.html to run a basic factorial function. It’s outputting the results in

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I’m using http://www.solve-et-coagula.com/As3Lisp.html to run a basic factorial function.

It’s outputting the results in scientific notation, but I’d like to see the full “expanded” number.

(defun factorial (n)
 (cond ((= n 0) 1)
       (t (* n (factorial (- n 1))))))

then

(factorial 100)

9.33262154439441e+157

I’ve tried various format commands, (format t "~D" (factorial 100)) looks like the winner but it doesn’t work. Also tried setting (setq *READ-DEFAULT-FLOAT-FORMAT* 'double-float) but still doesn’t work.

Is the problem with my commands, or is it the environment?

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1 Answer

  1. Editorial Team

    Turns out a different environment will do the trick.

    I used Gnu Common Lisp (http://www.cs.utexas.edu/~novak/gclwin.html) and the answer is returning as expected.

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