Supremum
Suppose is bounded above. A number is the supremum of if is an upper bound of and any number less the is not an upper bound of . We write = sup
Infimum
Suppose is bounded below. A number is the infimum of if is a lower bound of and any number greater the is not a lower bound of . We write = inf
Converges to a number L
A sequence {} converges to a number if
Z . The number is called the limit of the sequence and the notation
Z . The number is called the limit of the sequence and the notation
Bounded Below
The set is bounded below if there is a number such that . The number is called a lower bound of .
Bounded Above
The set is bounded above if there is a number such that . The number is called an upper bound of .
Bounded
The set is bounded if there is a number such that . The number is called a bound for .
Interval
A set of real numbers is an interval iff contains at least 2 points and for any two points , every real number between and belong to as well.
Finite
A set is finite if it is empty or if its elements can be put in a one to one correspondence with the set {1,2,...,n} for some n.
Countably Infinite
The set is countably infinite if its elements can be put in a one to one correspondence with the set of positive integers
Subsequence
Let be a squence and let be a strictly increasing sequence of positive integers.
The sequence is called a subsequence of
The sequence is called a subsequence of
Order
<, on a set is a relation with the following properties;
Trichotomy, if , then only 1 of the following holds; or
Transitivity, , if and
Trichotomy, if , then only 1 of the following holds; or
Transitivity, , if and
Field
A non empty set, , with , with 2 operations, + and * w the following properties;
Closure | ||
Commutative | ||
Associative | ||
Identity | ||
Inverse | ||
Distributive |
Squeeze Theorem for Functions
Let I be an open interval containing point c and suppose are functions defined on I except pssibly at c.
Suppose \{c}
if then f has limit at c and
Suppose \{c}
if then f has limit at c and
Subsequential Limit
The Subsequential limit of is any real number, x, such that there exists a subsequence of that converges to x
Differentiable at c
Let be an interval, let , and let . The function is differentiable at c provided that the limit
exists. The derivative of at c is the value of the limit and noted by
exists. The derivative of at c is the value of the limit and noted by
Uniformly continuous
Let be an interval. A function is uniformly continuous on if that satisfy .
Chain Rule
Let be an interval, ,
is defined on that contains
if is differentiable on , and is differentiable on then is differentiable on and
is defined on that contains
if is differentiable on , and is differentiable on then is differentiable on and
Intermediate Value Property
A function defined on an interval has the intermediate value property on if it satisfies the following condition: if and are distinct points in and is any number between and , then there exists a point between and such that
Limit Superior
if is bounded above then the limit superior is defined by
if not bounded above then the limit superior=
if not bounded above then the limit superior=
Limit Inferior
if is bounded below then the limit inferior is defined by
if not bounded below then the limit inferior = -
if not bounded below then the limit inferior = -
Right Hand Limit
is an open interval containing or is at endpoint. is a function defined on except maybe at
if or if is left endpoint, then has right hand limit L at c if
if or if is left endpoint, then has right hand limit L at c if
Left Hand Limit
is an open interval containing or is at endpoint. is a function defined on except maybe at
if or if is right endpoint, then has left hand limit L at c if
if or if is right endpoint, then has left hand limit L at c if
Jump Discontinuity
has jump discontinuity at if the one sided limits exist but are not equal
Removable Discontinuity
at c if exists, but is either not defined or has a different value from the limit as x approaches c
Tagged Partition
A tagged partition of an interval consists of a partition
{ } of along with the set
{ } of points, known as tags, that satisfy for .
We will express a tagged partition of by
{ }
{ } of along with the set
{ } of points, known as tags, that satisfy for .
We will express a tagged partition of by
{ }
Norm of Partition, ||P||
The Norm of the partition P, ||P|| = max
If and are partitions of and is a refinement of
If and are partitions of and is a refinement of
Riemann Sum
Let and let be a tagged partition of . The Riemann sum of associated with is defined by:
Riemann Integrable
A function is Riemann integrable on if there exists a number with the following property: for each , such that , for all tagged partitions of that satisfy
Riemann integral
The number L is called the Riemann integral of on and is denoted by the symbol , or simply .
Kartensatzinfo:
Autor: Squiggleart
Oberthema: Mathematics
Thema: Advanced Calculus
Schule / Uni: West Chester University
Veröffentlicht: 25.05.2011
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