General Discussion > Miscellaneous

Omnimaga Forum Usage/Traditions/Mentality Explanation

<< < (2/10) > >>

ztrumpet:
Wow, I don't know how I missed this, but it's a really nice thread.  Thanks meishe! ;D  Should it be pinned? :)

AngelFish:

--- Quote from: meishe91 on September 16, 2010, 01:12:41 am ---
Alt Characters:
So here on the forum we focus on programming and such. So on the calculator there are certain characters that you see on there but may not be on your common keyboard or something. To help with this I have found a way that will display these characters. They are called Alt Characters. They can be very helpful and useful. However, though I've never heard of this happening, some browsers may not recognize them correctly or at all.

Note:
These are for Windows users, as far as I know. I do not know if you can access them the same way on other operating systems.

How you access these characters is that you hold down the Alt key and push the numbers in on the number pad, I do not know how to get them to work on the numbers line.


--- End quote ---

The Alt characters are good, but sometimes they just don't include the character you need. When that happens, you need theUnicode Character Set. The article linked contains SOME of the hundred thousand or so Unicode characters. If you can't find the right character elsewhere, then chances are it's somewhere in Unicode. The downside to having that many characters is that the Unicode characters sets in web browsers are necessarily incomplete, so someone else using another browser might not be able to read what you type.

For example, this is the [Time Independent] Schrodinger equation:

∂²Ψ    -(2m(V(x)-E)Ψ
---  = -------------
∂x²        ℏ²Ψ

All of the funny little characters are Unicode characters because the Alt-code character set does not contain the proper symbols (with the exceptions of the partial derivative symbol ∂ and the squared symbol ².

calcforth:
Great manual. Some nits related to Unicode. You can read about unicode input methods in Wikipedia (where else).


--- Quote from: meishe91 on September 16, 2010, 01:12:41 am ---Alt+127: ⌂ (Delta)
--- End quote ---
That's U+2302 "house" symbol. Delta is U+2206: ∆.


--- Quote from: meishe91 on September 16, 2010, 01:12:41 am ---Alt+167: º (Degrees Symbol)
--- End quote ---
That's "masculine ordinal symbol (Spanish)". Degrees symbol is U+00B0: °. They look differently in most fonts, but in some fonts difference is more pronounced:.

--- Quote from: meishe91 on September 16, 2010, 01:12:41 am ---Alt+242: ≥ (Greater-Than-Or-Equal-To)
Alt+243: ≤ (Less-Than-Or-Equal-To)
--- End quote ---
I usually prefer U+2A7D and U+2A7E: ⩽ ⩾. But it's matter of taste.

DJ Omnimaga:
Gotta love unicode. Now if only it was supported by more software and mediums, like on IRC (when someone uses a different charset the chars show up differently on their side and sometimes they don't even see all of them).

On TI-BD forums there's a pop up showing all special calc characters for those who need to type code. Pretty useful sometimes. :)

I think I'll sticky this but I'll also append the other help links and rules to the first post, for those who want some other info.

meishe91:
I had no idea about Unicode, and don't even know how to input them :P But I think I'll keep it only Alt-Codes mostly because, like you said, they differ greatly from browser to browser. Such as when the U+2A7D and U+2A7E were just tried to be shown I only got squares. While I think alt-codes are more common to show up correctly.

@Calcforth
Ok, thanks for correcting me. Those are just what is closest in the Alt-Codes. That's why I labeled them as they are.

Navigation

[0] Message Index

[#] Next page

[*] Previous page