Symbole Plus ou Moins (±)
Le symbole plus ou moins ± correspond au point de code Unicode U+00B1. Cliquez sur Copier pour l'ajouter à vos marges de tolérance, encadrements statistiques et équations.
- Unicode
U+00B1- HTML
±- Windows
Alt + 0177- Mac
Option + Shift + =
How to type the symbole plus ou moins (±)
The quickest way is to press Copy above and paste. To type ± yourself, use the method for your device below. On Windows the alt code is Alt + 0177. On a Mac it is Option + Shift + =.
Windows
- Hold Alt and type 0177 on the numeric keypad, then release Alt. Num Lock must be on. This uses the Windows-1252 code page, so it works in almost every Windows app.
- Hold Alt and type 241 on the numeric keypad. This older code (from code page 437) works in Notepad, Word and most desktop apps.
- In Word or Outlook, type 00B1 and press Alt + X. Alt + X converts the hex code before the cursor into the character, and back again.
- Press Win + R, type charmap and press Enter. Tick “Advanced view”, search for Plus-Minus Sign, then Select and Copy. Character Map is built into every version of Windows.
Mac
- Press Option+Shift+=. On the standard US and US-International layouts.
- Press Control + Command + Space to open the Character Viewer, search for Plus-Minus Sign and double-click it.
Linux & ChromeOS
- Press Ctrl + Shift + U, type b1, then press Enter or Space. Works in GTK and IBus apps (GNOME, Firefox, Chrome, LibreOffice) and on ChromeOS.
- Press your Compose key, then + -. Needs a Compose key set in your keyboard settings.
iPhone & iPad
- Copy ± from this page, then go to Settings → General → Keyboard → Text Replacement and add it with a shortcut such as ;plus. The shortcut then turns into the symbol as you type, in every app.
Android
- Copy ± here, then open Gboard settings → Dictionary → Personal dictionary and add it with a shortcut.
Microsoft Word
- Type 00B1, then press Alt + X.
- Insert → Symbol → More Symbols. Set “from” to Unicode (hex), type 00B1 in “Character code” and click Insert.
- On a Mac, Option+Shift+= works in Word too.
Google Docs
- Insert → Special characters, then search for “plus-minus sign” or draw it in the box.
Excel & Google Sheets
- Enter
=UNICHAR(177)in a cell. It works in Excel 2013 and later and in Google Sheets.
HTML
- Write
±or±in your HTML.
What does ± mean?
Le symbole plus ou moins ± remplit une fonction fondamentale dans les sciences et les calculs appliqués. En algèbre, il indique une alternative entre deux solutions conjuguées, par exemple dans la formule quadratique. En physique et en métrologie industrielle, il quantifie l'intervalle de confiance ou la marge d'erreur expérimentale (comme 50 ± 1 mm).
Cette écriture synthétique évite de poser deux équations distinctes en condensant la plage supérieure et inférieure en une seule expression. Il s'emploie couramment aux côtés du signe de multiplication, du signe de division et des autres symboles mathématiques.
Symbole Plus ou Moins codes for HTML, CSS and programming
Every code below produces ±. Use the HTML entity in web pages, the CSS escape in content, and the escape sequence in source code.
| Unicode code point | U+00B1 | |
|---|---|---|
| HTML entity (named) | ± | |
| HTML decimal | ± | |
| HTML hex | ± | |
| CSS content | content: "\B1"; | |
| JavaScript | "\u00B1" | |
| Python | "\u00B1" | |
| Python (by name) | "\N{PLUS-MINUS SIGN}" | |
| Java / C# | "\u00B1" | |
| LaTeX | \pm | |
| UTF-8 bytes | C2 B1 | |
| UTF-16 | 00B1 | |
| URL encoded | %C2%B1 | |
| Windows Alt code | Alt + 0177 | |
| Alt code (CP437) | Alt + 241 | |
| Mac shortcut | Option + Shift + = |
Symbols similar to ±
Click to copy, or open a symbol for its codes. See the full math symbols collection.
- Minus Détails
- Multiplication Détails
- Division Détails
- Not Equal to Détails
- Almost Equal to Détails
- Identical to Détails
- Less-Than Or Equal to Détails
- Greater-Than Or Equal to Détails
- Proportional to Détails
- Infinity Détails
- Per Mille Détails
- Square Root Détails
- Cube Root Détails
- Superscript Two Détails
- Superscript Three Détails
± character properties
- Official Unicode name
- PLUS-MINUS SIGN
- Code point
- U+00B1
- Unicode block
- Latin-1 Supplement (U+0080–U+00FF)
- General category
- Math symbol (Sm)
- Added in
- Unicode 1.1 (1993)
- Plane
- Basic Multilingual Plane (0)
- Emoji
- No, it is a text symbol
Foire aux questions
Quel est le code Alt pour le symbole plus ou moins ?
Sous Windows, maintenez la touche Alt enfoncée et tapez 0177 (ou Alt + 241) sur le pavé numérique.
Comment taper plus ou moins sur Mac ?
Sur Mac, appuyez simultanément sur Option + Shift + =.
À quoi sert ce symbole dans les devis techniques ?
Il sert à définir la tolérance dimensionnelle maximale admise autour de la cote nominale d'une pièce.
What is the alt code for the symbole plus ou moins?
On Windows, hold Alt and type 0177 on the numeric keypad to get ±. The shorter code Alt + 241 also works in most desktop apps. On a laptop without a keypad, copy it from this page or use 00B1 then Alt + X in Word.
How do I type the symbole plus ou moins on a Mac?
Press Option + Shift + =. It works in every app on the US keyboard layout. You can also open the Character Viewer with Control + Command + Space and search for it.
What is the HTML code for the symbole plus ou moins?
Use the named entity ± or the numeric reference ± (hex ±). All three display ± in every browser.
What is the Unicode for the symbole plus ou moins?
± is U+00B1, officially named PLUS-MINUS SIGN, in the Latin-1 Supplement block. It has been part of Unicode since version 1.1 (1993).