Open source software for numerical computation

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Tcl Tk

Included in the official distribution of Scilab, Scilab software offers easy access to Tcl and Tk features.

The functions enable to exchange variables between Scilab <=> Tcl interpreters, to execute Tcl / Tk scripts  and to pilot control GUIs developed in Tk.

For example:

b=[6,4,1;2,3,5];
TCL_SetVar("B",b)
BfromTCL=TCL_GetVar("B")