$$\overrightarrow a\uparrow\uparrow\overrightarrow b$$
Could someone please explain what the 2 vertical arrow between a pair of vectors represent? I could not find any explanation online.
I found the notation in a question from my college test.
2026-05-06 04:13:44.1778040824
Came across an unknown vector notation in a practice test. What do the 2 vertical arrows between a pair of vectors denote?
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