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Is there a math/equation GUI program like this ?
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MathWizard:
Ok thanks I'll try a few links. I have Octave, but as far as I know, that needs a lot of typing.

Yeah I never thought about an online eqn editor, something just lazy point and click on symbols is all I'm thinking of.

For decades I've thought about hanging a board from the ceiling, or an arm from a wall, to put a book on when lying back in bed. But it would have to be pretty solid for writing on. I guess that's the stuff of dreams.
SiliconWizard:
If you're looking to just *type* equations for "publishing" purposes, neither Octave nor Maxima will be of much useful help. They are great tools though if you want to compute stuff. Two different things entirely, and you clearly stated that you weren't interested in doing the maths. So forget about Octave or Maxima here. Or if the suggestion was so that you would uh, copy the bitmaps by taking screenshots in those? Yuck.

Use one of the options we've been suggesting - directly LaTeX, or LibreOffice, or any tools that can take LaTeX math but is not as intimidating as the full LaTeX environment, there are online tools out there, or you could also use pandoc, which is great for converting markdown (in which you can insert LaTex math) to PDF, or HTML, or a ton of other formats.
Infraviolet:
Noting the mentions of Derive and Octave, If you're doing graphing and calculations then R and R-Studio can be helpful, but these are programming languages for working with equations, not for displaying the equation itself in a comfortably readable format.
IanB:

--- Quote from: MathWizard on January 12, 2023, 07:12:08 pm ---When you are lying down and using a notebook/pencil is not easy, I could draw eqn's in a paint program, but I'm not good at that, especially lying down with a mouse on my chest.

So I was wondering is there some program, meant for people writing eqn's , to put as a picture in a presentation, or on a form. So in the program, there would be toolbars, and instead of placing circles, or resistors, you choose some math symbol or number/letter, and place it on the work space.

And I don't care if the program actually does math, I just want something else besides trying to draw eqn's in paint, when lying down. Maybe it would be really slow and not worth it. But I would put a circuit together in a sim, rather than draw it on paper or in paint, so I'd try a symbolic math editor/notepad

--- End quote ---

Have you looked at the MS Office equation editor? You can create almost all equations from the keyboard about as quick as you can type. It automatically reformats your text as equations, building up as you go.

So, for example, you type "\sqrt(x^2+y^2) " and you see \$\sqrt{x^2+y^2}\$

For another example, if you type this: "\sum_1^n\of x^2 =n(n+1)(2n+1)/6 ", it will automatically be rendered like this:
$$\sum_1^n{x^2}=\frac{x(x+1)(2n+1)}{6}$$
If you can't remember the keyboard codes for certain things, you can also use the mouse to select them from the ribbon, but most are intuitive, for example "\theta" will give you \$\theta\$

You can also enter LaTeX directly if you prefer that entry method, but it doesn't build up as you go along the same way as the native Unicode markup does.
RJSV:
   One relative of mine, (disabled), used a microphone stand, having that heavy stand base, plus it had a horizontal 'boom' going out, over his legs in the bed.
But I would have thought, there might be a 'Sharper Image' type of catalog, offering a wide range of aiding devices (??).
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