Euler was the first to introduce the notation for a function f(x). He also popularized the use of the Greek letter π to denote the ratio of a circle's circumference to its diameter. Euler also made contributions in the fields of number theory, graph theory, logic, and applied mathematics.

How did Euler learn math?

Early life. Leonhard Euler was born on 15 April 1707, in Basel, Switzerland, to Paul III Euler, a pastor of the Reformed Church, and Marguerite (née Brucker), another pastor's daughter. ... He was receiving Saturday afternoon lessons from Johann Bernoulli, who quickly discovered Euler's talent for mathematics.

Who invented pure mathematics?

Beginning in the 6th century BC with the Pythagoreans, with Greek mathematics the Ancient Greeks began a systematic study of mathematics as a subject in its own right. Around 300 BC, Euclid introduced the axiomatic method still used in mathematics today, consisting of definition, axiom, theorem, and proof.