Equation and diagram tool for books and references

blockpad is an intriguing new program that might be what you are looking for.

Note that Blockpad is still pretty nascent from a usability perspective as a math tool; its spreadsheet still needs lots of work

TTFN (ta ta for now)
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No idea if this is any good or not, but it looks like it solves your math editor and diagram problems: [URL unfurl="true"]https://www.mathcha.io/[/url]

Is this for personal use, or are you going to sell it? If for personal use, try typing it into WolframAlpha and then using the snipping tool to capture an image of the equation, associated diagrams, etc. If you're going to sell it, then you'd have to look into Wolfram's licensing policies.

There are some tools in LibreOffice/OpenOffice, geared toward equations (Math) and diagramming (Draw).

If these are official reports your best bet is likely going to be LaTeX.

My Personal Open Source Structural Applications:

Open Source Structural GitHub Group:

Mathcad
Smath
Mathematica
Maple

You have lots of choices (plus the others already mentioned).

I found Corel Draw to be a very capable illustrator.

Not to be confused with the Corel photo editing suite of tools, which performs entirely different operations for photo image adjustment.

Once you have sufficient mastery of the tools you can create very nice line drawing illustrations for a document. There is going to be a learning curve.

I learned I had to develop a consistent process for creation, sizing, import and document formating to get a professional result.



My posts reflect my personal views and are not in any way endorsed or approved by any organization I'm professionally affiliated with.