github.com/benhoyt/goawk@v1.8.1/testdata/gawk/math.awk (about)

     1  BEGIN {
     2  	pi = 3.1415927
     3  	printf "cos(%f) = %f\n", pi/4, cos(pi/4)
     4  	printf "sin(%f) = %f\n", pi/4, sin(pi/4)
     5  	e = exp(1)
     6  	printf "e = %f\n", e
     7  	printf "log(e) = %f\n", log(e)
     8  	printf "sqrt(pi ^ 2) = %f\n", sqrt(pi ^ 2)
     9  	printf "atan2(1, 1) = %f\n", atan2(1, 1)
    10  }