Differential Equations: Computing and Modeling (5th Edition), Edwards, Penney & Calvis
5th Edition
ISBN: 9780321816252
Author: C. Henry Edwards, David E. Penney, David Calvis
Publisher: PEARSON
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Textbook Question
Chapter 7.5, Problem 28P
Suppose that f(i) is a periodic function of period 2a with
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2. Definition: If f(x) is a function, then we say that a value u is a fixed point of f(x) if and
only if f (u) = u.
Suppose F(x) is a given continuous function and a # 0 is a given real number.
Show that u is a zero of F(x) if and only if u is a fixed point of f (x)
f (x) = x + a F (x).
b. Suppose F '(x) is continuous, u is a zero of F, and F'(u) ± 0. Define
f (x) = x + aF(x). Prove there are values of a + 0 and ɛ > 0 so that if uo E
(u – E, u + ɛ) and un+1 = f (Un) for n =
Hint: Jun+1 – u| = \f (un) – f (u)]. Use the definition of f (x) and the mean
а.
= 0,1,2, ... then un → u as n → ∞.
|
value theorem.
Ql: The Collatz conjecture function is defined for a positive integer m as
follows. (COO1)
g(m) = 3m+1 if m is odd
= m/2 if m is even
=1 if m=1
The repeated application of the Collatz conjecture function, as follows:
g(n), g(g(n)), g(g(g(n))), ...
e.g. If m=17, the sequence is
1. g(17) = 52
2. g(52) = 26
3. g(26) = 13
4. g(13) = 40
5. g(40) = 20
6. g(20) = 10
7. g(10) = 5
8. g(5) = 16
9. g(16) = 8
10. g(8) = 4
11. g(4) = 2
12. g(2) = 1
Thus if m=17, apply the function 12 times in order to reach m=1. Use
Recursive Function.
For all a and b in the domain of a function f, the function is injective iff
f(a) #f(b)
a=Db
f(a)=f(b) a=b
f(a)=f(b)
atb
o fly)=x iff f(x)=y
A Moving to another question will save this response.
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Chapter 7 Solutions
Differential Equations: Computing and Modeling (5th Edition), Edwards, Penney & Calvis
Ch. 7.1 - Apply the definition in (1) to find directly tile...Ch. 7.1 - Prob. 2PCh. 7.1 - Prob. 3PCh. 7.1 - Prob. 4PCh. 7.1 - Prob. 5PCh. 7.1 - Prob. 6PCh. 7.1 - Prob. 7PCh. 7.1 - Prob. 8PCh. 7.1 - Prob. 9PCh. 7.1 - Prob. 10P
Ch. 7.1 - Prob. 11PCh. 7.1 - Prob. 12PCh. 7.1 - Prob. 13PCh. 7.1 - Prob. 14PCh. 7.1 - Prob. 15PCh. 7.1 - Prob. 16PCh. 7.1 - Prob. 17PCh. 7.1 - Prob. 18PCh. 7.1 - Prob. 19PCh. 7.1 - Prob. 20PCh. 7.1 - Prob. 21PCh. 7.1 - Prob. 22PCh. 7.1 - Prob. 23PCh. 7.1 - Prob. 24PCh. 7.1 - Prob. 25PCh. 7.1 - Prob. 26PCh. 7.1 - Prob. 27PCh. 7.1 - Prob. 28PCh. 7.1 - Prob. 29PCh. 7.1 - Prob. 30PCh. 7.1 - Prob. 31PCh. 7.1 - Prob. 32PCh. 7.1 - Prob. 33PCh. 7.1 - Prob. 34PCh. 7.1 - Prob. 35PCh. 7.1 - Prob. 36PCh. 7.1 - Given a0, let f(t)=1 if 0__1a,f(t)=0 if t__a....Ch. 7.1 - Given that 0ab. Let f(t)=1 if a__tb,f(t)=0 if...Ch. 7.1 - Prob. 39PCh. 7.1 - Prob. 40PCh. 7.1 - Prob. 41PCh. 7.1 - Given constants a and b. define h(t) for t__0 by...Ch. 7.2 - Prob. 1PCh. 7.2 - Prob. 2PCh. 7.2 - Prob. 3PCh. 7.2 - Prob. 4PCh. 7.2 - Prob. 5PCh. 7.2 - Prob. 6PCh. 7.2 - Prob. 7PCh. 7.2 - Prob. 8PCh. 7.2 - Prob. 9PCh. 7.2 - Prob. 10PCh. 7.2 - Prob. 11PCh. 7.2 - Prob. 12PCh. 7.2 - Prob. 13PCh. 7.2 - Prob. 14PCh. 7.2 - Prob. 15PCh. 7.2 - Prob. 16PCh. 7.2 - Prob. 17PCh. 7.2 - Prob. 18PCh. 7.2 - Prob. 19PCh. 7.2 - Prob. 20PCh. 7.2 - Prob. 21PCh. 7.2 - Prob. 22PCh. 7.2 - Prob. 23PCh. 7.2 - Prob. 24PCh. 7.2 - Prob. 25PCh. 7.2 - Prob. 26PCh. 7.2 - Prob. 27PCh. 7.2 - Prob. 28PCh. 7.2 - Prob. 29PCh. 7.2 - Prob. 30PCh. 7.2 - Prob. 31PCh. 7.2 - Prob. 32PCh. 7.2 - Prob. 33PCh. 7.2 - Prob. 34PCh. 7.2 - Prob. 35PCh. 7.2 - Prob. 36PCh. 7.2 - Prob. 37PCh. 7.3 - Prob. 1PCh. 7.3 - Prob. 2PCh. 7.3 - Prob. 3PCh. 7.3 - Prob. 4PCh. 7.3 - Prob. 5PCh. 7.3 - Prob. 6PCh. 7.3 - Prob. 7PCh. 7.3 - Prob. 8PCh. 7.3 - Prob. 9PCh. 7.3 - Prob. 10PCh. 7.3 - Prob. 11PCh. 7.3 - Prob. 12PCh. 7.3 - Prob. 13PCh. 7.3 - Prob. 14PCh. 7.3 - Prob. 15PCh. 7.3 - Prob. 16PCh. 7.3 - Prob. 17PCh. 7.3 - Prob. 18PCh. 7.3 - Prob. 19PCh. 7.3 - Prob. 20PCh. 7.3 - Prob. 21PCh. 7.3 - Prob. 22PCh. 7.3 - Prob. 23PCh. 7.3 - Prob. 24PCh. 7.3 - Prob. 25PCh. 7.3 - Prob. 26PCh. 7.3 - Prob. 27PCh. 7.3 - Prob. 28PCh. 7.3 - Prob. 29PCh. 7.3 - Prob. 30PCh. 7.3 - Prob. 31PCh. 7.3 - Prob. 32PCh. 7.3 - Prob. 33PCh. 7.3 - Prob. 34PCh. 7.3 - Prob. 35PCh. 7.3 - Prob. 36PCh. 7.3 - Prob. 37PCh. 7.3 - Prob. 38PCh. 7.3 - Problems 39 and 40 illustrate Iwo types of...Ch. 7.3 - Problems 39 and 40 illustrate Iwo types of...Ch. 7.4 - Find the convolution f(t)g(t) in Problems 1...Ch. 7.4 - Prob. 2PCh. 7.4 - Prob. 3PCh. 7.4 - Prob. 4PCh. 7.4 - Prob. 5PCh. 7.4 - Prob. 6PCh. 7.4 - Prob. 7PCh. 7.4 - Prob. 8PCh. 7.4 - Prob. 9PCh. 7.4 - Prob. 10PCh. 7.4 - Prob. 11PCh. 7.4 - Prob. 12PCh. 7.4 - Prob. 13PCh. 7.4 - Prob. 14PCh. 7.4 - Prob. 15PCh. 7.4 - Prob. 16PCh. 7.4 - Prob. 17PCh. 7.4 - Prob. 18PCh. 7.4 - Prob. 19PCh. 7.4 - Prob. 20PCh. 7.4 - Prob. 21PCh. 7.4 - Prob. 22PCh. 7.4 - Prob. 23PCh. 7.4 - Prob. 24PCh. 7.4 - Prob. 25PCh. 7.4 - Prob. 26PCh. 7.4 - Prob. 27PCh. 7.4 - Prob. 28PCh. 7.4 - Prob. 29PCh. 7.4 - Prob. 30PCh. 7.4 - Prob. 31PCh. 7.4 - Prob. 32PCh. 7.4 - Prob. 33PCh. 7.4 - Prob. 34PCh. 7.4 - Prob. 35PCh. 7.4 - Prob. 36PCh. 7.4 - Prob. 37PCh. 7.4 - Prob. 38PCh. 7.4 - Prob. 39PCh. 7.4 - Prob. 40PCh. 7.4 - Prob. 41PCh. 7.5 - Prob. 1PCh. 7.5 - Prob. 2PCh. 7.5 - Prob. 3PCh. 7.5 - Prob. 4PCh. 7.5 - Prob. 5PCh. 7.5 - Prob. 6PCh. 7.5 - Prob. 7PCh. 7.5 - Prob. 8PCh. 7.5 - Prob. 9PCh. 7.5 - Prob. 10PCh. 7.5 - Prob. 11PCh. 7.5 - Prob. 12PCh. 7.5 - Prob. 13PCh. 7.5 - Prob. 14PCh. 7.5 - Prob. 15PCh. 7.5 - Prob. 16PCh. 7.5 - Prob. 17PCh. 7.5 - Prob. 18PCh. 7.5 - Prob. 19PCh. 7.5 - Prob. 20PCh. 7.5 - Prob. 21PCh. 7.5 - Prob. 22PCh. 7.5 - Prob. 23PCh. 7.5 - Prob. 24PCh. 7.5 - Prob. 25PCh. 7.5 - Prob. 26PCh. 7.5 - Let g(t) be the staircase function of Fig. 7.5.15....Ch. 7.5 - Suppose that f(i) is a periodic function of period...Ch. 7.5 - Suppose that f(t) is the half-wave rectification...Ch. 7.5 - Let g(t)=u(tk)f(tk), where f(t) is the function of...Ch. 7.5 - Prob. 31PCh. 7.5 - Prob. 32PCh. 7.5 - Prob. 33PCh. 7.5 - Prob. 34PCh. 7.5 - Prob. 35PCh. 7.5 - Prob. 36PCh. 7.5 - Prob. 37PCh. 7.5 - Prob. 38PCh. 7.5 - Prob. 39PCh. 7.5 - Prob. 40PCh. 7.5 - Prob. 41PCh. 7.5 - Prob. 42PCh. 7.6 - Prob. 1PCh. 7.6 - Prob. 2PCh. 7.6 - Prob. 3PCh. 7.6 - Prob. 4PCh. 7.6 - Prob. 5PCh. 7.6 - Prob. 6PCh. 7.6 - Prob. 7PCh. 7.6 - Prob. 8PCh. 7.6 - Prob. 9PCh. 7.6 - Prob. 10PCh. 7.6 - Prob. 11PCh. 7.6 - Prob. 12PCh. 7.6 - Prob. 13PCh. 7.6 - Prob. 14PCh. 7.6 - This problem deals with a mass in on a spring...Ch. 7.6 - Prob. 16PCh. 7.6 - Prob. 17PCh. 7.6 - Prob. 18PCh. 7.6 - Prob. 19PCh. 7.6 - Repeat Problem 19, except suppose that the switch...Ch. 7.6 - Prob. 21PCh. 7.6 - Prob. 22P
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