Calculators

Brewing recipe calculation across desktop and web

Construction layouts, cut templates and dimension calculators

Heat-network and district-energy scenario calculations

Airfoil comparison, plotting and geometry calculations

Matrix-based numerical calculation and visualization

Focused statistics tools for research calculations

RF coil, antenna and related engineering calculations

High-precision scientific calculation with reusable expressions

A searchable catalogue of calculations and conversions

Date, number and measurement calculations

Primer-property and secondary-structure calculations

Building-services calculations with visible equations

Notes, variables and arithmetic in a browser

Route maps and great-circle distance calculations

Engineering calculations across circuits and mechanics

Math input with worked examples across several subjects

Mathematics and practical calculators by subject

Mathematical documents that combine solutions and visualization

A maintained HP-42S calculator simulator

Matrix operations with exact expressions in cells

Solar position, photovoltaic and map calculations

Symbolic, numerical and graphical mathematics tools

Research-statistics calculators for study interpretation

Subject calculators and a custom calculator builder