**ISO norms specify a standard symbol for cross product?**

I found in many books of mathematics the

```
\times
```

operator, while in physics it seems widely used the

```
\wedge
```

(or `\land`

or another similar symbol?) operator.

Which is the correct one according to ISO norms?

## Best Answer

The standard ISO 80000-2, “Mathematical signs and symbols to be used in the natural sciences and technology”, specifies that the symbol for vector product (commonly known as cross product, too) is “×” MULTIPLICATION SIGN U+00D7. This corresponds to

`\times`

in LaTeX.The “wedge” symbol “∧” denotes “logical and” by that standard and in common practice in formal logic. Using it for other purposes is thus nonstandard and potentially misleading.