Ask the user to specify a real number.
This function waits for user input of a real number and returns that real number. You can supply a prompt argument asking the user to enter a number.
Examples
| Code | Returns |
|---|---|
| (getreal) [type -5] |
no response -5.0 |
| (getreal
"Scale factor: ") [type 5 |
Scale factor 5.0 |
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Programming Overview of LISP (LISt Processing) Language
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