Plane Section is the intersection of a plane and a surface or a solid.
Arithmetic Sequence/ Arithmetic Progression:
A sequence, each term of which is equal to the sum of the preceding term and a constant, written
a, a+d , a+2d, ..., a+ (2n-1)d
where a is the first term, d is the common difference or simply the difference, and a+(2n-1)d=l is the last, or nth ,term.
Edge is a line or a line segment which is the intersection of two plane faces of a geometric figure, or which is in boundary of a plane figure. Examples are the edges of a polyhedron and of polyhedral angle, and the lateral edge of a prism.
Altitude is a line segment indicating the height of a figure in some sense (or the lenght of such a line segment).
SET
A set is a collection of elements defined in such a manner that it is possible to determine what elements are in the set and what elements are not in the set. It's assumed also that the elements of a set are distinct. In he material that follows, sets are denoted by name or by capital letters, as the set of integers, or the set A.
Just what items are to be included as the members of a particular set can be indicated in several ways, as listed below.
- A={a,b,16,Jhon}.The members of set A are a,b,16 and Jhon, and this is indicated by listing the elements are enclosing them with a pair of braces {}.
- B={0,1,2,3,4,5,...,98}.The members of set B are the "counting numbers" from 0 to 98 inclusive. The three dots,...,indicate that the pattern established by listing the first several elements is to be used in obtaining the remaining members of the set. The 98 following the three dots indicates that the last elements of the set is 98. This method should not be used unless the pattern is rather obvious.
- C={0,1,2,3,4,5,...}. Set C consists of all the "counting numbers". The three dots indicate that the established pattern is to be used to obtain the remaining members of the set, and the absence of a numeric symbol following the three dots indicates that the set goes on "forever".
- D={x/x has been a president of the United States}. Set D is defined with what is reffed to as the set-builder notation. This notation is read as : the set of elements x such that x has been a president of the United States . The braces indicate that it is to be a set; the x portrays a representative element of the set; the vertical line is read "such that"; and the remainder of the notation spells out the conditions necessary for an item to be a member of the set.
Just as its name implies, the empty set is the set that contains no elements. In set algebra the empty set plays a role similar to the role played by zero in arithmetic. The empty set is a subset of every set, including itself.
Some examples of the empty set:
A={b/b is a human being and b is 20 feet tall}
B={}
PARALLEL
Two straight lines on a two-dimensional surface are parallel if they do not intersect(cross) no matter how far they are extended. In figures, pairs of arrow like >,>>,and>>> will mean that the lines are parallel.
- whole number
- A natural number;0,1,2,3,4,...
The probability of an event is the ratio of the number of time it occurs to the large number of trials that take place; the mathematical model of probability is a positive measure which gives the measure of the space the value 1.
INTEGRAL FUNCTION
Integral Function is a function taking on integer values
Integral consist of two kind:
- definite integral / definite Riemann Integral
- indefinite integral is an integral at least one of two whose limits of integration is finite.
are the angles between a pair of line that switch sides of a third line.
VERTICAL ANGLES
are the two opposite (that is non-adjacent) angles formed by two intersecting lines. Vertical is a relationship between pairs of angles, so you cannot call one angle a vertical angle.
A SEGMENT
a segment is a region bounded by a chord and an arc lying between the chord's endpoints.
Taken from various resources such:
http://www.mathpropress.com/glossary/glossary.html
Mathematics Dictionary Fourth Edition by James
College Preparatory Mathematics 2 (geometry) by Salle, and friends
Fundamentals of College Mathematics by Donald Herrick
Dictionary of Mathematics second edition by McGraw-Hill
http://www.mathpropress.com/glossary/glossary.html
Mathematics Dictionary Fourth Edition by James
College Preparatory Mathematics 2 (geometry) by Salle, and friends
Fundamentals of College Mathematics by Donald Herrick
Dictionary of Mathematics second edition by McGraw-Hill
