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Real constants and functions: Difference between revisions
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→{{header|Tcl}}: formatting
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=={{header|Tcl}}==
<lang tcl>expr {exp(1)} ;# e
expr {4 * atan(1)}
expr {sqrt($x)}
expr {log($x)}
expr {exp($x)}
expr {abs($x)}
expr {floor($x)}
expr {ceil($x)}
expr {$x**$y} ;# power, also pow($x,$y)</lang>
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