Mathematical events

By osori17

  • Francois Viete

    Francois Viete
    Francois Viete used the words to symbolize unknowns and constants in algebraic equations in "sum obra In artem analyticam isagoge".

  • Symbols + and -

    Symbols + and -
    Henricus Grammateus publish the first printed work that uses the symbols + and - to represent addition and subtraction.

  • Dodecahedron

    Dodecahedron
    Johannes Kepler discovers one of his Platonic solids, the small dodecahedron that consists of taking a dodecahedron and instead of taking the pentagon, we raise in each edge an equilateral triangle and we join all the triangles of a face.