Question

Some math symbols that are made with ALT.
Do you want to know how to actually do it ?
(•‿•)

Answer 1

1) Click and HOLD \(\normalsize\color{black}{ \bf ALT }\)
2) Click the number code (using the numbers that are on the right of the keyboard, not the once below F1, F2, F3, etc., ) 3) release the ALT

3 ♥
4 ♦
5 ♣
6 ♠
you do play cards, right ? \(\normalsize\color{black}{ \bf ;) }\)

9 2 \ (this is often used in latex, but you won't find it on the keyboard).
9 6 4 ─
1 5 5 ¢ (if you just want to write it nicely and shortly like this)
7 5 4 ≥
7 5 5 ≤
2 4 6 ÷
2 2 7 π (symbol for pi, \(\normalsize\color{black}{ \bf π }\) )
2 5 1 √
7 5 3 ±
2 4 7 ≈ ("approximately equals")
2 5 3 ² (this symbol means "to the second power")
2 5 2 ⁿ (this symbol means "to the power of n" )
1 6 6 ª (this symbol means "to the power of a" )
2 3 6 ∞ ("infinity")
4 2 8 ¼
1 7 1 ½
1 6 7 º (a degree sign )
1 7 5 »
4 3 0 «
9 4 7 │ (do this one twice, you will get an "absolute value of...")
2 4 9 ∙
2 1 9 █


you can definitely try different codes, because there are many more symbols; these are just the most useful ones, as I thought :)

Answer 2

Some others people might use for math:

0179 ³
0190 ¾
26 →
29 ↔
170 ¬
224 to 235, Greek letters:
α ß Γ π Σ σ µ τ Φ Θ Ω δ
237 φ
238 ε
239 ∩
240 ≡
37 %
0137 ‰