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Real constants and functions: Difference between revisions
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ceil x; (* ceiling *)
Math.pow (x, y); (* power *)</lang>
=={{header|TCl}}==
<lang tcl>expr {exp(1)} ;# e
expr {4 * atan(1)} ; # pi
expr {sqrt($x)} ; # square root
expr {log($x)} ; # natural logarithm, also log10
expr {exp($x)} ; # exponential
expr {abs($x)} ; # absolute value
expr {floor($x)} ; # floor
expr {ceil($x)} ; # ceiling
expr {$x**$y} ;# power, also pow($x,$y)</lang>
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