// Copyright ©2017 The Gonum Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Package functions provides objective functions for testing optimization
// algorithms.
//
// We encourage outside contributions of additional test functions that exhibit
// properties not already covered in the testing suite or that have
// significance due to prior use as benchmark cases.
package functions // import "gonum.org/v1/gonum/optimize/functions"

const badInputDim = "functions: wrong input dimension"
