What is the geometric meaning of cross product

What is the geometric meaning of cross product

The geometric meaning of cross product is: for example, the vector x, the cross product vector y is that the four fingers of the right hand bend in the Y direction in the same direction as the X direction, the direction of the thumb is the direction of the cross product result, and the area surrounded by the size of X and y

What is the geometric meaning of dot product?

Dot product: (x1, Y1, z1). (X2, Y2, Z2) = x1x2 + y1y2 + z1z2 dot product can be used to calculate the angle between two vectors. The formula is as follows: cos (V ^ w) = v.w / | V | w | the geometric meaning of dot product is