Quantus

Quantus is a desktop calculator for SI units and symbolic maths. You write a formula in a formula editor or straight in LaTeX, press Enter, and get the result together with its working, the way you would write it down in a notebook:

F = m_1 \cdot 9{,}81\frac{m}{s^2}

SYMBOLIC	$F = m_{1} \cdot 9{,}81\,\frac{\mathrm{m}}{\mathrm{s}^{2}}$
SUBSTITUTED	$F = 2\,\mathrm{kg} \cdot 9{,}81\,\frac{\mathrm{m}}{\mathrm{s}^{2}}$
STEP	$F = 19{,}62\,\frac{\mathrm{kg} \cdot \mathrm{m}}{\mathrm{s}^{2}}$
RESULT	$F = 19{,}62\,\mathrm{N}$

Every result can be copied as LaTeX.

Four modes

Mode	What it is for
Physics	Units and physical constants are known; results are checked, converted and named
Algebra	Every letter is a variable: simplify, factor and solve
Imaginary	As Algebra, but $i$ is the imaginary unit and results may be complex
Analysis	Enter $f(x) = \ldots$ and get the whole curve sketch beside a graph

Where to go next

• New here? Install Quantus and follow Your first calculation.
• Read Concepts once: modes, how letters are read and why variables carry an index explain most surprises.
• The Guides show one task each, the Reference lists everything that is supported.
• Want to change the code? Start with Architecture.