Jean-Baptiste Prosper Jollois began his studies as a boarder in 1787 at the Collège de
Joigny in
Yonne, then at
Sens. In 1794, he entered the
École polytechnique alongside
Louis Didier Jousselin and
Louis Poinsot, where he stayed for three years. After graduating, he became a civil engineer (ingénieur des
École des ponts ParisTech). His examination to become an engineer was held before
Gaspard Monge. == References ==