github.com/gopherd/gonum@v0.0.4/diff/fd (about) crosslaplacian.go crosslaplacian_test.go derivative.go derivative_test.go diff.go doc.go example_test.go gradient.go gradient_test.go hessian.go hessian_test.go jacobian.go jacobian_test.go laplacian.go laplacian_test.go simplefunctions_test.go watson_test.go