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Scientific/engineering firmware repurposing HP business calculators!
...Our customers confirm its documentation is excellent and comprehensive (see feedback); a full-color printed edition is available from https://www.amazon.com/dp/153366238X since 2018-10-15. Alternatively, you can get a personalized pdf-manual for a ≥ 9 US$ donation here.
We have also produced the WP 31S which is derived from the WP 34S sourcecode. This is an entry-level scientific calculator. Its printed manual is available from https://www.amazon.com/dp/1499231164 .
Wcalc is a powerful arbitrary-precision calculator. It has standard functions (sin, asinh, logtwo, floor, etc), many pre-defined constants (pi, e, c, etc.), variables, "active" variables, command history, and hex/octal/binary i/o, conversions, and more
An easy and simple tool to calculate the half-lives of radioactive substances and looking up elements on the table of elements by name, element symbol, atomic number, or atomic weight.
Sourcecode is on GitHub here:
https://github.com/InfinityDevelopment/ChemistryCalculator
NOTE:
This is a Java program. Inside the ZIP there is the .jar file and .bat file(which you would run to start the program on Windows) required to run on Windows, however, to run it on other operating systems you will most likely need to execute "java -jar program.jar" on it from that OS's terminal.
Mole (Chemistry Calculator) can calculate molar mass, number of moles and atoms, empirical and molar formulas and can do stoichiometric calculations such as percent yield and limiting reactant. Mole can also do gas stoichiometry and gas law calculations.
AppSignal's MCP server hands Claude, Cursor, or Zed your real errors, traces, and the deploy that shipped them. AI writes the fix; you review the diff.