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Theory-test preparation with learner, instructor and library access routes.

DVSA-partner learning resources, practice tests and theory preparation for drivers and riders.

Computational algebra and number-theory software

Symbolic, numerical and number-theory calculators

Free music theory exercises for learners and teachers

Music theory exercises and analytical articles

Symbolic tensor calculations for field-theory problems

Computational discrete algebra with a specialist language

An interactive introduction to musical relationships

Read colour-coded charts with pixel names, highlighting and filtered views.

Parse flexible colour input and generate conversions, adjustments and harmonies.

Inspect a colour, compare approximate matches and build a gradient.

Connect physical colour references with digital palettes and design files.

Use NCS notations and tools to communicate colour choices.

Build colour harmonies with an RYB wheel and export palettes for design apps.

Convert and interpolate colours through an extensible Python object.

Reshape colour relationships on a grid and export reusable LUTs.

Collect screen colours and hand palettes to Mac design tools.

Calculate colour from spectral samples and compare the results in Python.

Look up colour values, compare schemes and calculate blends.

Start from one colour and preview a palette in an interface.

Inspect colour codes, build harmonies and extract palettes from images.

Named gradient references with colour values and a companion Chrome tool

Explore historical colour names through swatches and natural examples.