{\displaystyle \int _{a}^{b}\!f(x)\,dx=F(b)-F(a).} The principles of integration were formulated independently by Isaac Newton and Gottfried Leibniz in the late 17th century, who thought of the integral as an infinite sum of rectangles of infinitesimal width.
amendment - a statement that is added to or revises or improves a proposal or document (a bill or constitution etc.) statement - a message that is stated or declared; a communication (oral or written) setting forth particulars or facts etc; according to his statement he was in London on that day.
Noun. 1. First Amendment-an amendment to the Constitution of the United States guaranteeing the right of free expression; includes freedom of assembly and freedom of the press and freedom of religion and freedom of speech.irst Amendment to the United States Constitution-definition of First Amendment to the United States Constitution by The Free Dictionary.