Table of Contents
What is the minus symbol called?
The name “hyphen-minus” is a Unicode invention; the character is referred to as a hyphen or a minus sign according to the context where it is being used. It is often called a “dash”, though it is normally shorter than the dash characters.
How do you type a minus sign?
Methods that work on any platform
- To insert an en dash (–), click on the first character (the shorter dash).
- To insert an em dash (—), click on the second character (the longer dash).
- To insert a minus sign (−), click on the − between the ± and the × .
How do you do the plus or minus sign?
Microsoft Word offers a pre-defined shortcut key for some symbols such as plus-minus sign and minus-plus sign:
- Type 00b1 or 00B1 (does not matter, uppercase or lowercase) and immediately press Alt+X to insert the plus-minus symbol: ±
- Type 2213 and press Alt+X to insert the minus-plus symbol: ∓
What is the minus used for?
The minus sign, −, has three main uses in mathematics: The subtraction operator: a binary operator to indicate the operation of subtraction, as in 5 − 3 = 2. Subtraction is the inverse of addition. The function whose value for any real or complex argument is the additive inverse of that argument.
Why minus minus is equal to plus?
This is in fact the reason why the negative numbers were introduced: so that each positive number would have an additive inverse. The fact that the product of two negatives is a positive is therefore related to the fact that the inverse of the inverse of a positive number is that positive number back again.
Why does my minus key not work?
The most probable reason is the wrong keyboard language. It has to be “English US”. You can check and change the setting on the control panel. Open the Windows menu (Windows flag key right above the PRESET key).
Why put plus or minus in square root?
To indicate that we want both the positive and the negative square root of a radicand we put the symbol ± (read as plus minus) in front of the root. The square roots of numbers that are not a perfect square are members of the irrational numbers. This means that they can’t be written as the quotient of two integers.
Why is there a plus or minus square root?
By “taking the square root” of either side and placing a “±” in front of the numerical value, we save ourselved the trouble of solving the absolute-value equation that was (technically) created by taking the square root.
What is minus Plus is equal to?
Addition and Subtraction Two ‘pluses’ make a plus, two ‘minuses’ make a plus. A plus and a minus make a minus.
What is minus minus equal to?
Minus Multiply Minus is Plus Negative multiplied by Negative is a positive number, which means that product of two negative integers is always positive.
What is plus/minus is equal to?