Mathematics For Machine Technology
8th Edition
ISBN: 9781337798310
Author: Peterson, John.
Publisher: Cengage Learning,
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Textbook Question
Chapter 9, Problem 21A
Write these numbers as words.
21. 0.007
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9.7 Given the equations
0.5x₁-x2=-9.5
1.02x₁ - 2x2 = -18.8
(a) Solve graphically.
(b) Compute the determinant.
(c) On the basis of (a) and (b), what would you expect regarding
the system's condition?
(d) Solve by the elimination of unknowns.
(e) Solve again, but with a modified slightly to 0.52. Interpret
your results.
12.42 The steady-state distribution of temperature on a heated
plate can be modeled by the Laplace equation,
0=
FT T
+
200°C
25°C
25°C
T22
0°C
T₁
T21
200°C
FIGURE P12.42
75°C
75°C
00°C
If the plate is represented by a series of nodes (Fig. P12.42), cen-
tered finite-divided differences can be substituted for the second
derivatives, which results in a system of linear algebraic equations.
Use the Gauss-Seidel method to solve for the temperatures of the
nodes in Fig. P12.42.
9.22 Develop, debug, and test a program in either a high-level language or a macro
language of your choice to solve a system of equations with Gauss-Jordan elimination
without partial pivoting. Base the program on the pseudocode from Fig. 9.10. Test the
program using the same system as in Prob. 9.18. Compute the total number of flops in
your algorithm to verify Eq. 9.37.
FIGURE 9.10
Pseudocode to implement the
Gauss-Jordan algorithm with-
out partial pivoting.
SUB GaussJordan(aug, m, n, x)
DOFOR k = 1, m
d = aug(k, k)
DOFOR j = 1, n
aug(k, j) = aug(k, j)/d
END DO
DOFOR 1 = 1, m
IF 1 % K THEN
d = aug(i, k)
DOFOR j = k, n
aug(1, j)
END DO
aug(1, j) - d*aug(k, j)
END IF
END DO
END DO
DOFOR k = 1, m
x(k) = aug(k, n)
END DO
END GaussJordan
Chapter 9 Solutions
Mathematics For Machine Technology
Ch. 9 - Use Figure 9-4 to answer Exercises 16. All...Ch. 9 - Use Figure 9-4 to answer Exercises 16. All...Ch. 9 - Use Figure 9-4 to answer Exercises 16. All...Ch. 9 - Use Figure 9-4 to answer Exercises 16. All...Ch. 9 - Use Figure 9-4 to answer Exercises 16. All...Ch. 9 - Use Figure 9-4 to answer Exercises 16. All...Ch. 9 - Find the decimal value of each of the distances A,...Ch. 9 - Find the decimal value of each of the distances A,...Ch. 9 - Find the decimal value of each of the distances A,...Ch. 9 - In each of the following exercises, the value on...
Ch. 9 - In each of the following exercises, the value on...Ch. 9 - In each of the following exercises, the value on...Ch. 9 - In each of the following exercises, the value on...Ch. 9 - In each of the following exercises, the value on...Ch. 9 - In each of the following exercises, the value on...Ch. 9 - In each of the following exercises, the value on...Ch. 9 - In each of the following exercises, the value on...Ch. 9 - In each of the following exercises, the value on...Ch. 9 - In each of the following exercises, the value on...Ch. 9 - Write these numbers as words. 20. 0.064Ch. 9 - Write these numbers as words. 21. 0.007Ch. 9 - Write these numbers as words. 22. 0.132Ch. 9 - Write these numbers as words. 23. 0.0035Ch. 9 - Write these numbers as words. 24. 0.108Ch. 9 - Write these numbers as words. 25. 1.5Ch. 9 - Write these numbers as words. 26. 10.37Ch. 9 - Write these numbers as words. 27. 16.0007Ch. 9 - Write these numbers as words. 28. 4.0012Ch. 9 - Write these numbers as words. 29. 13.103Ch. 9 - Write these words as numbers. 30. eighty-four...Ch. 9 - Write these words as numbers. 31. three tenthsCh. 9 - Write these words as numbers. 32. forty-three and...Ch. 9 - Write these words as numbers. 33. four and five...Ch. 9 - Write these words as numbers. 34. thirty-five...Ch. 9 - Write these words as numbers. 35. ten and two...Ch. 9 - Write these words as numbers. 36. five and one...Ch. 9 - Write these words as numbers. 37. twenty and...Ch. 9 - Write these numbers as words using the alternative...Ch. 9 - Write these numbers as words using the alternative...Ch. 9 - Write these numbers as words using the alternative...Ch. 9 - Write these numbers as words using the alternative...Ch. 9 - Write these numbers as words using the alternative...Ch. 9 - Write these numbers as words using the alternative...Ch. 9 - Write these numbers as words using the alternative...Ch. 9 - Write these numbers as words using the alternative...Ch. 9 - Write these words as numbers. 46. forty-three and...Ch. 9 - Write these words as numbers. 47. fourteen and...Ch. 9 - Write these words as numbers. 48. thirty-seven and...Ch. 9 - Write these words as numbers. 49. one hundred six...Ch. 9 - Write these words as numbers. 50. seventy-six...Ch. 9 - Write these words as numbers. 51. four and one...Ch. 9 - Each of the following common fractions has a...Ch. 9 - Each of the following common fractions has a...Ch. 9 - Each of the following common fractions has a...Ch. 9 - Each of the following common fractions has a...Ch. 9 - Each of the following common fractions has a...Ch. 9 - Each of the following common fractions has a...Ch. 9 - Each of the following common fractions has a...Ch. 9 - Each of the following common fractions has a...Ch. 9 - Each of the following common fractions has a...
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