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MAT Mathematics
MAT Mathematics
53
Mathematics
Graduate
10/30/2012

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Term
absolute value
Definition
the magnitude of a number, irrespective of its sign. Written as a number inside verical lines I3I = 3 and I-3I = 3
Term
acute angle
Definition
an angle measuring less that 90 degrees. a Triangle with three acute angles is called an acute triangle.
Term
composite number
Definition
an integer that has more factors than one and itself; i.e., a nonprime integer greater than 1.
Term
complementary angles
Definition
two angles whose measures add up to 90 degrees.
Term
edge
Definition
a line segment formed by the intersection of two faces of a three-dimensional shape.
Term
dividend
Definition
a number to be divided.
Term
divisor
Definition
a number that divides into another number
Term
ellipse
Definition
an oval shape, literally a set of points in a plane for which the sum of the distances from two points (called foci) is constant.
Term
equilateral triangle
Definition
a triangle with three equal sides and three equal angles of 60 degrees.
Term
face
Definition
a polygon formed by the edges of a solid.
Term
hypotenuse
Definition
the side of a right triangle opposite the right angle. Always the longest side. If c is the hypotenuse and a and b are the legs of the right triangle, then c2 = a2 + b2
Term
imaginary number
Definition
a number that cannot be represented on the number line because it contains a factor of i,
Term
legs
Definition
The two sides of a right triangle that are not the hypotenuse (i.e., are not opposide the right angle).
Term
obtuse
Definition
An angle that meausres more than 90 degrees and less than 180. An obtuse triangle is one that has one obtuse angle.
Term
parallelogram
Definition
A quadrilateral with two parallel sides.
Term
perimeter
Definition
The sum of the lengths of the sides of a polygon. Two polygons with same area do not necessarily have the same perimeter.
Term
pi
Definition
An irrational number represented by symbol. App. 3.14. Area of a circle - pi r 2.
Term
Circumference of a circle
Definition
2 pi r
Term
r
Definition
"= radius"
Term
prime number
Definition
An integer greater than 1 that has no factors other than 1 and itself. The first ten are 2, 3, 5, 7, 11, 13, 17, 23, 29, and 31.
Term
Pythagorean theorem
Definition
the rule that states, "For any right triangle, the sum of the squares of the legs is equal to the square of the hypotenuse."
Term
radical
Definition
square root symbol. With a little number written in, it represents a higher root.
Term
radius
Definition
The length of a line segment connecting the center and a point on a circle. The radius is half the diameter.
Term
real
Definition
Having a place on the number line..
Term
reciprocals
Definition
A pair of numbers whose product is 1. To get reciprocal of a fraction, switch the numerator and denominator.
Term
rhombus
Definition
A quadrilateral with four equal sides.
Term
scalene triangle
Definition
A triangle with sides of different lengths. A 3-4-5 triangle is a scalene triangle.
Term
supplementary angles
Definition
Two angles whose measures add to 180 degrees.
Term
trapezoid
Definition
A quadrilateral with two parallel sides and two nonparallel sides.
Term
torus
Definition
A doughnut shaped surface generated by a circle rotated about an axis in its plate that does no intersect the circle.
Term
John Napier
Definition
Scotland
logarithms & primitive calculator
Term
Isaac Newton
Definition
England
Gravity & Integral and differential calculus
Term
Blaise Pascal
Definition
France
calculating machine & barometer & Pascal's triangle
Term
Archimedes
Definition
Greece
pi & the lever & the screw & areas of planes/solid figures
Term
Charles Babbage
Definition
England
difference engine & analytical engine, early calculator/computer
Term
Pythagoras
Definition
Greece
irrational numbers & prime/composite numbers
Term
Bertrand Russel
Definition
England
formal logic
Term
Leonhard Euler
Definition
Switzerland
differential calculus & algebraic notation
Term
Pierre de Fermat
Definition
France
number theory & probability theory
Term
Hipparchus
Definition
Rhodes
trigonometry & mapping
Term
Gottfried Liebnez
Definition
Germany
calculus & symbolic logic
Term
Auguste Ferninand Mobius
Definition
Switzerland
topology & Mobius Strip/Band
Term
Diophantus
Definition
Greece
algebra
Term
Euclid
Definition
Greece
Euclidean geometry
Term
Rene Descartes
Definition
France
analytic geometry & x and y axes
Term
Augusta Ada King Lovelace
Definition
England
analytical engine
Term
Octal
Definition
Numeral system is the base-8 number system
10 in octal is equal to 1000 in binary
Term
Sine/sin
Definition
opposite/hypotenuse

Reciprocal - cosecant/csc
Term
Cosine/cos
Definition
adjacent/hypotenuse

Reciprocal - secant/sec
Term
Tangent/tan
Definition
opposite/adjacent

Reciprocal - cotangent/cot
Term
Cotangent/cot
Definition
adjacent/opposite

Reciprocal - tangent/tan
Term
Secant/sec
Definition
hypotenuse/adjacent

Reciprocal - cosine/cos
Term
Cosecant/csc
Definition
hypotenuse/opposite

Reciprocal - sine/sin
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