In trigonometry, he discovered the formula known as Mollweide's formula and he invented a map projection called the Mollweide projection.
He invented a map projection called the Mollweide projection. In trigonometry, he discovered the formula known as Mollweide's formula.
In trigonometry, he discovered the formula known as Mollweide's formula. He invented a map projection called the Mollweide projection.
In trigonometry, he discovered the formula known as Mollweide's formula. He invented a map projection called the Mollweide projection.