The plus–minus sign, ±, is a mathematical symbol with multiple meanings. It generally indicates a choice of exactly two possible values, one of which is obtained through addition and the other through subtraction. In ISO 8859-1, -7, -8, -9, -13, -15, and -16, the plus–minus symbol is code 0xB1. This location was copied to Unicode.

Source: Wikipedia

Character Sets | Decimal | Hex |
---|---|---|

Code page 437 | 241 | F1 |

ISO-8859-1 | 177 | B1 |

ISO-8859-7 | 177 | B1 |

ISO-8859-8 | 177 | B1 |

ISO-8859-9 | 177 | B1 |

Windows-1250 | 177 | B1 |

Windows-1251 | 177 | B1 |

Windows-1252 | 177 | B1 |

Windows-1253 | 177 | B1 |

Windows-1254 | 177 | B1 |

Windows-1255 | 177 | B1 |

Windows-1256 | 177 | B1 |

Windows-1257 | 177 | B1 |

Windows-1258 | 177 | B1 |

Unicode | U+00B1 | |
---|---|---|

Unicode Decimal | 177 | |

Unicode Escape | \u00b1 | |

UTF-8 (hex) | 0xC2 0xB1 | |

UTF-8 (binary) | 1100001010110001 | |

UTF-8 (binary) | ||

1100001010110001 | ||

UTF-16 | 0x00B1 | |

UTF-32 | 0x000000B1 |

HTML Number | ± | |
---|---|---|

HTML Hex | ± | |

HTML Entity | ± ± |

URL Escape Code | %C2%B1 | |
---|---|---|

Quoted-printable | =C2=B1 |

C, C++, and Java | "\u00B1" | |
---|---|---|

CSS Code | \00B1 | |

JavaScript | "\u00B1" | |

Perl | \x{00B1} | |

Python 2 | u"\u00B1" | |

Python 3 | \u00B1 | |

Ruby | \u{00B1} |

To insert the plus/minus (±) symbol in Microsoft Word, follow these steps:

- Place your cursor where you want to insert the symbol.
- Click on the "Insert" tab in the toolbar at the top of the window.
- In the "Symbols" group, click on the "Symbol" button.
- Choose "More Symbols" from the dropdown menu.
- In the "Symbol" dialog box, make sure the "Font" is set to "Segoe UI Symbol" or "Arial Unicode MS" or another font that includes the plus/minus symbol.
- Scroll through the list of symbols until you find the plus/minus (±) symbol.
- Click on the plus/minus (±) symbol to select it.
- Click the "Insert" button at the bottom of the dialog box to insert the symbol into your document.
- Click "Close" to close the "Symbol" dialog box.

In English, the symbol "±" is pronounced as "plus or minus." It is used to represent the possible range of values that can occur, usually in the context of mathematical equations, scientific measurements, or statistical data.

To type the plus/minus (±) symbol on a Mac, use the following keyboard shortcut:

- Press and hold the "Option" (or "Alt") key.
- While holding the "Option" key, press the "Shift" key and the "+" (plus) key simultaneously.
- Release all keys.

The plus or minus sign (±) is used to indicate a range of values, uncertainties, or errors in various contexts, such as mathematics, science, engineering, and statistics. Here are some ways to use the ± symbol:

**Indicating a range of values:**

When you want to express that a value can fall within a specific range, you can use the ± symbol. For example, if a temperature is 25 ± 2°C, it means that the actual temperature could be anywhere between 23°C and 27°C.**Representing uncertainties or errors:**

In science and engineering, measurements often have associated uncertainties due to limitations in the measuring instruments or methods. For example, if a length is measured as 10 ± 0.5 cm, it indicates that the actual length could be between 9.5 cm and 10.5 cm.**Expressing solutions to quadratic equations:**

When solving quadratic equations, you may find two solutions, one positive and one negative. The ± symbol is used to express both solutions concisely. For example, the solutions to the equation x^2 = 9 can be written as x = ±3, representing x = 3 and x = -3.**Indicating tolerances in engineering and manufacturing:**

In manufacturing, products have specific tolerances to ensure proper functionality. The ± symbol is used to express these tolerances. For example, if a machine part has a specified diameter of 5.00 ± 0.02 cm, it means that the diameter can range from 4.98 cm to 5.02 cm.

Yes, there is a difference between the "±" (plus/minus) and "∓" (minus/plus) symbols in mathematics.

The "±" (plus/minus) symbol is used to indicate that a value can be either added to or subtracted from another value.

On the other hand, the "∓" (minus/plus) symbol is less common and is used to indicate the opposite operation of the plus/minus symbol. It is typically used in conjunction with the plus/minus symbol to denote two sets of expressions with opposite signs.

In most cases, you will encounter the plus/minus (±) symbol, which is more commonly used to represent ranges, uncertainties, or errors in mathematics, physics, and other fields. The minus/plus (∓) symbol is less frequently used and typically appears in specific mathematical contexts.In Microsoft Excel, the plus/minus (±) symbol does not have a specific meaning or function associated with it as it does in mathematics or physics. However, you can use it in Excel to represent a range of values, uncertainties, or errors in your data, similar to how it is used in other contexts.

If you see the ± symbol in an Excel spreadsheet, it has likely been inserted manually by the user to indicate a certain range or to represent a value with an associated uncertainty. Keep in mind that the symbol itself does not carry out any calculations or operations in Excel; it is purely a visual representation.In science, the +/- (plus/minus) symbol represents a range of values, uncertainties, or errors associated with a measurement or a calculated result. It is used to indicate that the true value could be either higher or lower than the reported value by a specific amount. This symbol helps to convey the precision and accuracy of scientific measurements or calculations, acknowledging that there is always some level of uncertainty involved.