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Comparing ray/doc/man/man1/icalc.1 (file contents):
Revision 1.3 by greg, Thu Dec 19 16:38:12 2013 UTC vs.
Revision 1.5 by greg, Fri Mar 11 22:50:13 2022 UTC

# Line 88 | Line 88 | The following library of predefined functions and vari
88   .BR PI
89   the ratio of a circle's circumference to its diameter.
90   .TP
91 < .BR "if(cond, then, else)"
92 < if cond is greater than zero,
91 > .BR "if(test, then, else)"
92 > if test is greater than zero,
93   then is evaluated, otherwise else is evaluated.
94   This function is necessary for recursive definitions.
95   .TP
# Line 102 | Line 102 | is zero, the number of available arguments is returned
102   .TP
103   .BR "rand(x)"
104   compute a random number between 0 and 1 based on x.
105 + .TP
106 + .BR "min(a1, a2, ..)"
107 + return the minimum value from a list of arguments.
108 + .TP
109 + .BR "max(a1, a2, ..)"
110 + return the maximum value from a list of arguments.
111   .TP
112   .BR "floor(x)"
113   return largest integer not greater than x.

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