In LaTeX you use the command \cdot to make a multiplication-dot. Sometimes you can use the symbol ×. A matrix having n rows and m columns is a m×n-matrix. The code \times is used in LaTeX to make the symbol ×.

How do you type a multiplication sign?

1. You have 3 options to make a multiplication sign.
2. Just type letter X or x in your keyboard. …
3. Use the keyboard shortcut of multiplication symbol (×). …
4. Alt + 0215 = ×

Can * be used as multiplication sign?

Arithmetic. the symbol (⋅), (×), or (∗) between two mathematical expressions, denoting multiplication of the second expression by the first.

What is the multiplication equivalent of summation?

Sigma (summation) and Pi (product) notation are used in mathematics to indicate repeated addition or multiplication. Sigma notation provides a compact way to represent many sums, and is used extensively when working with Arithmetic or Geometric Series.

How do you align equal signs in LaTeX?

The eqnarray environment lets you align equations so that, for example, all of the equals signs “=” line up. To do this, put ampersand “&” signs around the text you want LaTeX to align, e.g. Each equation can be labelled separately, just put the label command after the relevant equation.

How do you type a multiplication sign on a dot?

The multiplication sign × (also known as the times sign or the dimension sign) is the mathematical sign for the multiplication operation….Using a shortcut key:

Shortcut key Symbol
Dot symbol Type 22c5 or 22C5 and immediately press Alt+X
Division sign Type 00f7 or 00F7 and immediately press Alt+X ÷

Why is the multiplication sign a dot?

This is primarily done to emphasize different multiplication operations in terms of vector and multidimensional calculus. In particular, this is to emphasize that the dot product ⋅ is mechanically different from the cross product ×, although in operations on objects of one dimension, they are virtually the same.

How do I align multiple equal signs in LaTeX?

How do you type Interpunct?

On Microsoft Windows computers, the interpunct is available as Alt+0183, though it is likely more convenient to use something like Insert > Symbol in Microsoft Word for occasional use. In LaTeX, the interpunct is available as \cdot.