How to use pi in tcl

Altair Forum User

Hi,

 

I need to use value of pi number in the expression below

 

set y [expr $mag*sin($angle*2*pi/360)]

 

Is there any usage of pi number in TCL?

Thanks in advance.

tinh

hi,

i think just use it as ordinary varialbles similar to $mag, $angle

set pi=3.14

and get value by $pi

Altair Forum User

set pi [expr acos(-1.0)]

usage:

set y [expr $mag*sin($angle*2.0*$pi/360.0)]

Altair Forum User

http://wiki.tcl.tk/8401