- Thread starter STF92
- Start date

- Joined
- Jun 18, 2007

- Messages
- 24,624

We use ASCII symbols and LaTex (do a google search to learn more about it,).Hi: how do you write mathematical symbols here? I've seen other posts and they seem to use ASCII code but rendering special symbols.

- Joined
- Apr 22, 2015

- Messages
- 2,953

Hi STF92. Suggestions for math symbols appear in the forum's… ASCII code but rendering special symbols.

I often use ASCII characters because my keyboard has a numeric keypad; that allows me to type

± × ÷ ∑ ∙ √ ∞ ∩ ≈ ≠ ≤ ≥ σ Ω α β θ º π Ψ

There's a link in the posting guidelines also for learning how to text expressions containing symbols. For examples, typing something like

root[3](625) \(\quad\) means \(\quad \sqrt[3]{625}\)

sum[n=k,infty](x_n) \(\quad\) means \(\quad \sum_{k}^{\infty} x_{n}\)

int[a,b](x^3 + 7x - 10) dx \(\quad\) means \(\quad \int_{a}^{b} 3x^{3} + 7x - 10 \text{ dx}\)

For aligning columns (when typing a matrix, for example), you can use Code tags and a fixed-width font. (Click the 'Post Reply' button and then click the gear icon at the right end of the toolbar, to see my typing for the codes.)

Code:

```
-1 3 10 4
0 12 7 -2
0 -1 3 1
```

If you're interested in learning about LaTeX, you can start with

Cheers