ALGEBRA GLOSSARY

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Title Description
Tangent A line that touches a function curve at a single point is said to be Tangent to the function.
Tangent is also one of the six basic trigonometric functions; it is the ratio of the opposite side (from a specified angle) of a right triangle to the adjacent side.
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Tangent Line A Line is said to be Tangent to a function when it touches the graph of the function at a single point.
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Tau Tau is the 19th letter of the Greek alphabet.
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Taylor Series Many common functions can be written as an expansion of the function about a point in a form known as a Taylor Series.
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Term In most mathematical expressions a single Term is isolated from other Terms by plus or minus signs.
A monomial is a Term.
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Terminal Side of an Angle When in standard position, an Angle has an initial side, a ray on the positive x-axis, and a Terminal Side where the rotation of the angle stops, at an angle of specific measure (in degrees or radians).
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Tessellate A planar pattern of repeating geometric shapes is a Tessellation; to produce these shapes is to Tessellate.
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Tetrahedron A polyhedron with four faces.
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Theorem A mathematical principle typically proved with some rigor is often a Theorem.
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Theta The eighth letter of the Greek alphabet is Theta, a common variable for an angle.
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Third Quartile For certain types of data, it is the 75th percentile.
Also high quartile or upper quartile.
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Three Dimensions The Dimensions of space or volume are Three Dimensions, typically labeled with rectangular, spherical, or cylindrical coordinates.
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Three-Dimensional Coordinates Three-Dimensional Coordinates require an ordered triple to label a point in space.
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Transcendental Number A Transcendental Number will not be the root of a polynomial with integer coefficients; it is an irrational number.
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Transitive Property The Transitive Property is exhibited when three values are related in the following manner: If A = B and B = C, then A = C.
The relation need not be equality.
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Transpose (Matrix) When we interchange the rows and columns of a matrix we Transpose the Matrix.
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Transversal A line that crosses two or more parallel lines is often termed a Transversal.
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Triangle A three-sided polygon.
Triangles are either acute, right, or obtuse.
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Trinomial A polynomial with three terms.
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Triple As a verb, Triple means to multiply by three.
As a noun, the result from multiplication by three.
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Triple Product (Scalar) Effectively, a Scalar Triple Product is akin to the determinant of a 3x3 matrix.
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Truncation Replace the lesser digits of some number with zeros with no regard for rounding; this is Truncation.
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Two Dimensions A plane has Two Dimensions.
Planar figures are Two Dimensional.
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