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

     1  cos(0.785398) = 0.707107
     2  sin(0.785398) = 0.707107
     3  e = 2.718282
     4  log(e) = 1.000000
     5  sqrt(pi ^ 2) = 3.141593
     6  atan2(1, 1) = 0.785398