Enhancing the PF Posting Frame with Additional Useful Symbols?

[Fredrik]

tiny-tim, the "Learning LaTeX" link in your signature could use an update.

 

[tiny-tim]

tiny-tim, the "Learning LaTeX" link in your signature could use an update.

looks ok to me …

and the https://www.physicsforums.com/showthread.php?t=386951 sticky ​

actually, with the new box, i hardly ever use my signature

btw, is the box invisible on some devices (eg phones)?​

 

[Fredrik]

looks ok to me …

You're linking to the old sticky (which is no longer a sticky), but at least it contains a link to the new one. I just thought that you might want to link directly to the new one, but you can of course link to whatever you want to.

 

[tiny-tim]

… at least it contains a link to the new one.

two links are still a link!

 

[tiny-tim]

∅ is the empty set.

I agree that φ would be useful (occasionally).

here's a typical thread where ∅ looks horrible …

Homework Statement

Prove that:
tan^2∅/tan∅ - 1 + cot^2∅/cot∅ - 1 = 1 + sec∅cosec∅

Homework Equations

The Attempt at a Solution

I have solved the question taking tan∅ = sin∅/cos∅.
But I want to solve it some other way.

(i've taken to typing ψ instead of ∅ )

can we please have φ ? ​

 

[Fredrik]

Well, yes, but that's like saying that the word "fo∅l" looks weird when one of the o's is replaced by the empty set symbol. It's not a phi, and to try to use it as a phi is quite bizarre.

φ is one of the more useful greek letters, so I wouldn't mind having it added to the list. It's not as useful as · though.

Do people really use ∴and ∠ ?