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Engineering calculations documented in natural notation

Mathematical problem solving with displayed working

Mathematical problems that reward programming solutions

Notebook-based symbolic and numerical computation

Sell software and subscriptions through a merchant of record

Author software user guides and manuals, then publish them online or as help files.

A browser-based shared math canvas for handwriting, graphs, sliders, and PDF assignments.

An open-source notebook for multimedia notes, attachments, and personal reference material.

Work with multidimensional arrays and vectorized numerical operations in Python.

Draw publication figures with geometric snapping and LaTeX text

Everyday calculations with topic-specific explanations

Engineering worksheets that mix formulas and explanation

Scientific expressions with variables and numerical calculus

Android scientific calculation with symbolic and graphical tools

Symbolic transformations for very large expressions

Calculations in algebraic geometry and commutative algebra

Mathematical calculators arranged by course topic

Publish XML and HTML documents using XSL-FO or CSS

AI idea generators for advertising and creative work

Free accounting software for US companies with optional bookkeeping services

High-precision numerical expressions with custom functions

Math and electrical calculations in a compact tool directory

Engineering formulas, reference data and calculation tools

Symbolic expressions with documented algorithms