- #1

RJLiberator

Gold Member

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## Homework Statement

This is a general question about the equation.

So, I know that the cross product requires a vector in at least 3 dimensions crossed with another.

Here is the formula that I am using:

uxv =

My problem is the negative/positive sign orientation in front of the y element and z element.

I've seen equations for this where there exists only addition between the x,y, and z elements in a cross product. And my teacher tried to explain it to me, and I softly understood, but I want to make sure I know what's going on.

Why does the cross product equation sometimes have all positive signs between elements, but the one that I use (and works) has a negative and then a positive sign?