4.98 tanh - Hyperbolic Tangent

Format : tanh( $r$ )

Calculate the hyperbolic tangent.

Example

Example 1: Basic Example

$ more dat1.csv
id,val
1,3.141592
2,-1.047197
3,
4,6.283185
$ mcal c='tanh(${val})' a=rsl i=dat1.csv o=rsl1.csv
#END# kgcal a=rsl c=tanh(${val}) i=dat1.csv o=rsl1.csv
$ more rsl1.csv
id,val,rsl
1,3.141592,0.9962720714
2,-1.047197,-0.7807142201
3,,
4,6.283185,0.9999930253