MathDown vs PDF Editor, Reader, Scanner

Pay once, use forever. No subscriptions! Write markdown documents with live LaTeX math rendering. Expressions inside $ and $$ blocks are automatically parsed, evaluated, and displayed as beautifully typeset equations. • Define variables and reuse them across your document • Create functions like let f(x) = x^2 and evaluate them • Automatic algebraic simplification combines like terms • Full LaTeX support: fractions, roots, subscripts, superscripts Perfect for math notes, homework, tutorials, or any document where you want calculations that update as you type.

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