## Sir Isaac Newton's Two Treatises: Of the Quadrature of Curves and Analysis by Equations of an Infinite Number of Terms, Explained : Containing the Treatises Themselves, Translated Into English, with a Large Commentary ; in which the Demonstrations are Supplied where Wanting, the Doctrine Illustrated, and the Whole Accommodated to the Capacities of Beginners, for Whom it is Chiefly Designed |

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Obviously Plagerised from Leibniz :p

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### Common terms and phrases

Absciss and Ordinate Abseils Arch Area ABC Area belonging Assymptote Axis betwixt binomial Curves Cafe Circle circular Sector Coefficients compared Conic Section converge converging Series Curve proposed Curve whose Ordinate Curves belonging curvilinear Area demonstrated Denominator denotes Ellipse equal Equation evanescent Explica Exponent Expression fame thing Figure find the Area finite flowing Quantities Fluent Fluxions Form geometrical Hyperbola hyperbolical Sector Index infinite Series initial Limit inserting irreducible Fraction Latus Rectum likewise Logarithm Method Method of Fluxions multiplied nate negative Integer Order Ordi Ordinate BC Parabola plication Point positive preceding principal Vertex Prop proportional quadrable Quadrature of Curves Radius Relation right Line Root Secants Sector Series's shew shewn spiral squared Subtangent subtract suppose Tangent thence Theorem third tion Triangle trinomial ultimate Ratio Unity Value vanish Velocity Vinculum whence Wherefore

### Popular passages

Page 288 - When a ray of light passes from one medium to another, it is refracted so that the ratio of the sine of the angle of incidence to the sine of the angle of refraction is equal to the ratio of the velocities in the two media.

Page viii - Just so it is in the mind ; would you have a man reason well, you must use him to it betimes, exercise his mind in observing the connection of ideas, and following them in train. Nothing does this better than mathematics, which therefore I think should be taught all those who have the time and opportunity, not so much to make them mathematicians, as to make them reasonable creatures...

Page viii - I have mentioned mathematics as a way to settle in the mind a habit of reasoning closely and in train; not that I think it necessary that all men should be deep mathematicians, but that, having got the way of reasoning, which that study necessarily brings the mind to, they might be able to transfer it to other parts of knowledge, as they shall have occasion.

Page 34 - I. The length of the space describ'd being continually (that is, at all times) given; to find the velocity of the motion at any time propos'd.

Page 347 - ... ratio between two whole numbers the impossibility of the problem of rectification is not inferable. The quadrature of the circle stands and falls with the problem of rectification. This is based upon the truth above mentioned, that a circle is equal in area to a right-angled triangle, in which one side is equal to the radius of the circle and the other to the circumference. Supposing, accordingly, that the circumference of the circle were rectified, then we could construct this triangle. But...

Page 306 - COROLLARY. The measure of the surface of a spherical triangle is the difference between the sum of its three angles and two right angles. For if s =-J- of the surface of the sphere, 180°xm=s X(A + B + C— 180°).

Page viii - Reafoning, which that ftudy neceffarily brings the Mind to, they might be able to transfer it to other parts of Knowledge as they fhall have occafion. For in all forts of Reafoning, every fmgle Argument mould be managed as a Mathematical Demonftration, the Connection and dependence of Ideas...

Page 2 - AB, the ordinate BC and the curve line ACc ; and the sides of the triangle CET...

Page viii - ... times, exercife his mind in obferving the connection of ideas, and follow them in train. Nothing does this better than mathematics, which therefore, I think, fhould be taught all thofe who have the time and opportunity, not fo much to make them mathematicians, as to make them reafonable creatures...

Page 312 - As for example, The right cone is generated by the revolution of a right-angled triangle round one of the sides which contain the right angle.