Quadratic Quotes
By 1700 all of the familiar members of the [number] system... were known. However, opposition to the newer types of numbers was expressed throughout the century. Typical are the objections of... Baron Francis Masères... in 1759 his Dissertation on the Use of the Negative Sign in Algebra... shows how to avoid negative numbers... and especially negative roots, by carefully segregating the types of quadratic equations so that those with negative roots are considered separately; and... the negative roots are to be rejected.
Morris Kline
One of the first algebraists to accept negative numbers was... placed negative numbers on a par with positive numbers and gave both roots of a quadratic equation, even when both were negative. Both Girard and Harriot used the minus sign for the operation of subtraction and for negative numbers.
Morris Kline
The concept of graphene came along in 1947, but nobody paid much attention to it. I was fascinated because it had a linear E versus K while everything else that people were working on at that time had a quadratic dispersion relationship. I wondered why this was and what was so special about it. That was my fascination.
Mildred S. Dresselhaus
... the science of calculation also is indispensable as far as the extraction of the square and cube roots Algebra as far as the quadratic equation and the use of logarithms are often of value in ordinary cases but all beyond these is but a luxury a delicious luxury indeed but not to be in indulged in by one who is to have a profession to follow for his subsistence.
Thomas Jefferson
An ideological movement is a collection of people many of whom could hardly bake a cake, fix a car, sustain a friendship or a marriage, or even do a quadratic equation, yet they believe they know how to rule the world. The university, in which it is possible to combine theoretical pretension with comprehensive ineptitude, has become the natural habitat of the ideological enthusiast. A kind of adventure playground, carefully insulated from reality in order to prevent absent-minded professors from bumping into things as they explore transcendental realms, has become the institutional base for civilizational self-hatred.
Kenneth Minogue
In 1858 he was selected by [the British Association] to prepare a report upon the Theory of Numbers. It was prepared in five parts, extending over the years 1859-1865. It is neither a history nor a treatise, but something intermediate. The author analyzes with remarkable clearness and order the works of mathematicians for the preceding century upon the theory of congruences, and upon that of binary quadratic forms. He returns to the original sources, indicates the principle and sketches the course of the demonstrations, and states the result, often adding something of his own. The work has been pronounced to be the most complete and elegant monument ever erected to the theory of numbers, and the model of what a scientific report ought to be.
Henry John Stephen Smith
