A powerful mathematical expressions editor. Formulator is aware of presentation and semantics face of mathematics, and so it allows not only to visually edit, but also to calculate simple Content MathML formulas (numbers, sets, linear algebra). Exporting functions includes MathML text, XHTML documents with MathML inlined, raster images and vector graphics. Formulator implements effective solutions for a wide audience of software developers, educators, students, STM publishers.