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// Code generated by "go generate”; DO NOT EDIT.
// Copyright ©2014 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 unit
import (
// Energy represents a quantity of energy in Joules.
type Energy float64
const Joule Energy = 1
// Unit converts the Energy to a *Unit.
func (e Energy) Unit() *Unit {
return New(float64(e), Dimensions{
LengthDim: 2,
MassDim: 1,
TimeDim: -2,
// Energy allows Energy to implement a Energyer interface.
func (e Energy) Energy() Energy {
return e
// From converts the unit into the receiver. From returns an
// error if there is a mismatch in dimension.
func (e *Energy) From(u Uniter) error {
if !DimensionsMatch(u, Joule) {
*e = Energy(math.NaN())
return errors.New("unit: dimension mismatch")
*e = Energy(u.Unit().Value())
return nil
func (e Energy) Format(fs fmt.State, c rune) {
switch c {
case 'v':
if fs.Flag('#') {
fmt.Fprintf(fs, "%T(%v)", e, float64(e))
case 'e', 'E', 'f', 'F', 'g', 'G':
p, pOk := fs.Precision()
w, wOk := fs.Width()
const unit = " J"
switch {
case pOk && wOk:
fmt.Fprintf(fs, "%*.*"+string(c), pos(w-utf8.RuneCount([]byte(unit))), p, float64(e))
case pOk:
fmt.Fprintf(fs, "%.*"+string(c), p, float64(e))
case wOk:
fmt.Fprintf(fs, "%*"+string(c), pos(w-utf8.RuneCount([]byte(unit))), float64(e))
fmt.Fprintf(fs, "%"+string(c), float64(e))
fmt.Fprint(fs, unit)
fmt.Fprintf(fs, "%%!%c(%T=%g J)", c, e, float64(e))