Format : tan()
Compute tangent of radian .
$ more dat1.csv id,val 1,0.785398 2,1.047197 3, 4,3.141593 $ mcal c='tan(${val})' a=rsl i=dat1.csv o=rsl1.csv #END# kgcal a=rsl c=tan(${val}) i=dat1.csv o=rsl1.csv $ more rsl1.csv id,val,rsl 1,0.785398,0.9999996732 2,1.047197,1.732048603 3,, 4,3.141593,3.464102066e-07