var math.tanhP4 uses
math (current package)
tanh.go#L57: var tanhP = [...]float64{
tanh.go#L101: z = x + x*s*((tanhP[0]*s+tanhP[1])*s+tanhP[2])/(((s+tanhQ[0])*s+tanhQ[1])*s+tanhQ[2])
The pages are generated with Goldsv0.4.9. (GOOS=linux GOARCH=amd64)