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Maclaurin, Colin

(Encyclopedia) Maclaurin, ColinMaclaurin, Colinməklôrˈĭn, –lärˈĭn [key], 1698–1746, Scottish mathematician and natural philosopher, one of the greatest mathematicians of his time. He was professor at…

secant

(Encyclopedia) secant, in mathematics. 1 In geometry, a secant is a straight line cutting a curve or surface. If it intersects the curve in two different points, as in the secant of a circle, the…

Fibonacci, Leonardo

(Encyclopedia) Fibonacci, LeonardoFibonacci, Leonardolāōnärˈdō fēbōnätˈchē [key], b. c.1170, d. after 1240, Italian mathematician, known also as Leonardo da Pisa. In Liber abaci (1202, 2d ed. 1228),…

Geometry: Circumference and Area: Pi Anyone?

Circumference and Area: Pi Anyone?GeometryAnatomy of a CircleBasic TermsArcsCircumference and Area: Pi Anyone?TangentsFrom One Theorem Comes Many One of the unusual things about circles is that…

Geometry: From One Theorem Comes Many

From One Theorem Comes ManyGeometryAnatomy of a CircleBasic TermsArcsCircumference and Area: Pi Anyone?TangentsFrom One Theorem Comes Many You haven't had a proof in awhile. “Never let a section…

Geometry: How Many Midpoints Are There?

How Many Midpoints Are There?GeometryProving Segment and Angle RelationshipsExploring MidpointsHow Many Midpoints Are There?Proving Angles Are CongruentUsing and Proving Angle ComplementsUsing and…

Geometry: How Many Shapes Can a Circle Have?

How Many Shapes Can a Circle Have?GeometryWhose Geometry Is It Anyway?Non-Euclidean GeometryHyperbolic Geometry: Saddle Up!Spherical GeometryTaxi-Cab GeometryMax GeometryHow Many Shapes Can a Circle…

Geometry: Let's All Fly a Kite!

Let's All Fly a Kite!GeometryPutting Quadrilaterals in the ForefrontProperties of All QuadrilateralsProperties of TrapezoidsLet's All Fly a Kite!Properties of ParallelogramsThe Most Popular…