Chapter 2, TclX - the Extended Tcl language

Several extended math commands add functionality
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: