Questions related to memory devices that help learners recall larger pieces of information, especially in the form of lists like characteristics, steps, stages, parts.
Questions tagged [mnemonic]
41 questions
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What makes this mnemonic device work for multiplication?
I stumbled across a mnemonic device related to multiplication, outlined on this wikipedia page. I see that it does work, but I'd like to know why. It works as follows (from the wikipedia page):
→ →
1 2 3 2…
ivan
- 3,237
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Has anyone heard of the "Of" operator, and if yes then what does it represent?
Where I studied (India), in my school we were taught BODMAS as Brackets, Of, Division, Multi, Add, Sub.
With "Of" being the Of operator as in
1/2 Of 4 ie. Literally - 1/2 parts of 4
Can also be represented as (1/2)(4)
which is sorta multiplication…
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Mnemonic for cubic discriminant?
I sort of doubt there is a good one out there, but I thought I'd ask. I'm looking for a mnemonic for the general discriminant of the polynomial $ax^3+bx^2+cx+d$, which is
$$b^2c^2-4ac^3-4b^3d-27a^2d^2+18abcd$$
Obviously if necessary, one can use…
pancini
- 19,216