Amongst other things they independently invented calculus. Newton probably made the first discovery, but delayed publishing for many years. Leibniz also held off publishing for a long time, waiting, apparently for Newton to do it. Eventually Leibniz published anyway. They became bitter rivals.
The German scientist who corresponded with Isaac Newton was Gottfried Wilhelm Leibniz. Leibniz was a mathematician and philosopher known for developing calculus independently of Newton.
Both had been working on similar ideas - on calculus - and Newton, who was considered by some contemporaries to be rather an arrogant man, was not amused to see someone else steal his thunder!
The theory discovered between Isaac Newton and Gottfried Leibniz was the development of calculus. Both Newton and Leibniz independently developed this mathematical system to describe and analyze change and motion, laying the foundation for modern calculus.
Gottfried Wilhelm Leibniz
As a scientist, he is mainly known for the general law of gravitation, and Newton's laws of movement. As a mathematician, he basically invented calculus (so did another mathematician, Leibniz, independently of Newton).
Newton and Leibniz
Leibniz and Newton
Issac Newton and Leibniz
No, Newton, an Englishman, and Leibniz, a German, were both accomplished mathematicians, who independently developed an early form of calculus.
Isaac Newton and Gottfried Wilhelm Leibniz
Isaac Newton and Gottfried Leibniz.
Gottfried Wilhelm Leibniz
Both of them came up with the concept (semi-) independently; both were aware that the other was working on it and in fact they exchanged letters on the subject, but they approached it from different directions (Newton started with differentiation, Leibniz started with integration). Going by their private papers it appears that Newton was further along earlier than Leibniz, but Leibniz published a full description much earlier than Newton did.
Isaac Newton and Gottfried Wilhelm Leibniz are credited with inventing calculus independently of each other around the same time. Each used his own notation. Calculus is more commonly associated with Newton than with Leibniz.
The German scientist who corresponded with Isaac Newton was Gottfried Wilhelm Leibniz. Leibniz was a mathematician and philosopher known for developing calculus independently of Newton.
Sir Isaac Newton and Leibniz.
Yes, although Newton did contribute.