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Trail discovery, activity recording and route maps

Book French rail journeys and connect daily transport planning

Standard, scientific, programmer and date calculations

Android scientific calculation with symbolic and graphical tools

A handheld-style scientific calculator for Android

Linked mathematical views for algebra, geometry and graphs

Cloud-service cost estimates with inspectable assumptions

Azure cost scenarios from selected services and usage

Online learning with weekly e-lessons and tutor discussion.

Free voice calculator you speak to, in the browser or on iPhone.

Formulas and notes arranged on a mathematical worksheet

Monthly cost scenarios for planned cloud workloads

Topic-based calculators for practical questions

Mathematics and practical calculators by subject

Arithmetic, finance and programming modes in one app

Integration with visible input, steps and graphs

A searchable catalogue of calculations and conversions

Air-travel carbon estimates with a published methodology

A maintained HP-42S calculator simulator

Visual calculator forms with custom price rules

Graph equations, inspect points and evaluate functions

Distance-learning courses with tutor support.

Equations explored through graphs and symbolic methods

Distance-learning courses with audio and membership options.