Born in
Faicchio, he was the brother of Angelo, professor first of
medical physics then of mathematics at the
University of Naples; and of
Nicola Antonio De Martino, professor of mathematics and director of the Real Corpo degli Ingegneri (Royal Engineers Corp) and Marine Guard. Pietro De Martino was a pupil of
Agostino Ariani and of Giacinto De Cristoforo (1650-1730). In 1735, he was assigned to the astronomical and nautical chair at the University of Naples. He disputed with
Roger Joseph Boscovich on the question if it is possible to gain a right result starting from a wrong
hypothesis. He authored various works; his
Nuove istituzioni di aritmetica pratica, published originally in 1739 in Naples, had many reprints (the better known of the 1758; one also in
Turin in 1762). He died in Naples in 1746. == Works ==