Several extended math commands commands make many additional math functions available in TclX. In addition, a set of procedures provide command access to the math functions supported by the expr command.
The following procedures provide command interfaces to the expr math functions. They take the same arguments as the expr functions and may take expressions as arguments.
abs acos asin atan2 atan ceil cos cosh double exp floor fmod hypot int log10 log pow round sin sinh sqrt tan tanh
See the manual pages for the following commands: