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24 Cards in this Set
- Front
- Back
"well defined"
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established way of solving, not subject to debate
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Mathematics
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the study of patterns
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A calculus
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any formal system
-a system that in theory could be executed entirely by a computer with no common sense and acting without regard to the meaning of the underlying symbols. |
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The calculus
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1. Differential: the study of change / rate of change
2. Integral: Integral calculus |
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What did Hippasus do?
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Hippasus discovered irrationality, specificially that root 2 is irrational. According to legend he was drowned by pythagoreans who believe in perfect order = music
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System
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A set of anything such that the components work together.
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Definition
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A bidirectional conditional statement.
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Who discovered the calculus?
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Newton and Leibniz (individually) discovered the calculus. We use Leibniz' notation.
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Metamathematics
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The mathematics of mathematics
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Kurt Gödel
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Incompleteness theorem: any complete system of mathematics will be inconsistent.
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Proposition
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"a concept"/"a statement", a statement about mathematical concepts
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Don't forget WLOG!
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Without Loss of Generallity
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What is a calculator's normal tolerance / highest possible tolerance (machine)?
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10^-5 and 10^-99
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Neighborhood
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A neighborhood of width ε about x=c, where ε>0 and ε, x is a member of set R, is an open interval (c-ε,c+ε)
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Punctured δ-neighborhood
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A punctured δ-neighborhood of q is a member of set R is a δ-neighborhood excluding q itself, i. e.,
(q-δ,q) U (q, q+δ) |
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What are DeMorgan's Laws?
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~(PUQ)⇔~P∩~Q
~(P∩Q)⇔~PU~Q |
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What is the formal definition of limit as x approaches -∞?
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L = lim as x approaches -∞ f(x) iff ∀ε>0 ∃ D∈R: ∀x<D,|f(x)-L|<ε
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Definition of derivative
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lim as h approaches 0 of [ f(x+h) - f(x) ] / h
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Integral
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Accumulation of rates of change
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Adaptive Quadrature
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Adaptive = step size can adapt, Quadrature = calculation of area (in squares)
Calculator uses this method to find integrals |
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Necessary and sufficient
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⇔ aka definition
If A=>B is true, then B is necessary and A is sufficient. |
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Explain the importance of y = C+AcosB(x-D)
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1. The sinusoidal axis is along the line y=c
2. The amplitude equals |A| 3. The period equals 2π/|B| 4. The phase displacement equals D |
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Antiderivative
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The function f is an antiderivative of function g iff f'(x)=g(x) for all values of x in their domains.
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Differential Equation
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Any equation that contains a derivative.
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