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The article alludes to this when it mentions Calculus 3 (vector calculus): × is the cross product. • is the dot product. In dimensions higher than 1, they ar
by lupire 2y ago
The article alludes to this when it mentions Calculus 3 (vector calculus):
× is the cross product.
• is the dot product.
In dimensions higher than 1, they are different.
- RossBencina 2y agoI find it clearer to write dot products using inner product notation 〈,〉rather than \cdot .
- fifilura 2y agoIn Sweden, with scalars, we used vertically centered dot, but even that is pretty uncommon since most of the time, two letters or a letter and a number are mixed and then it is left it out altogether. This made the x problem much smaller.
- rossant 2y agoIn France we use the wedge ∧ for vector cross product.
- f1shy 2y agoSame in Spanish. That gets rid of the problem.
- SAI_Peregrinus 2y agoThen what do you use for the outer product?