Solutions Manual MATLAB An Introduction with Applications 6th Edition Amos Gilat

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SOLUTION MANUAL

, Chapter 1
Solved Problems

Problem 1

Script file:

clear, clc disp('Part (a)')
(22+5.1^2)/(50-6.3^2)
disp('Part (b)')
44/7+8^2/5-99/3.9^2


Command Window:

Part (a) ans
=
4.6566
Part (b) ans
=
12.5768



Problem 2

Script file:

clear, clc disp('Part (a)')
sqrt(41^2-5.2^2)/(exp(5)-100.53) disp('Part (b)')
%alternative: nthroot(132,3)+log(500)/8
132^(1/3)+log(500)/8


Command Window:

Part (a) ans
=
0.8493
Part (b) ans
=
5.8685

,Problem 3
Script file:

clear, clc disp('Part (a)')
(14.8^3-6.3^2)/(sqrt(13)+5)^2
disp('Part (b)')
45*(288/9.3-4.6^2)-1065*exp(-1.5)


Command Window:

Part (a) ans
=
43.2392
Part (b) ans
=
203.7148



Problem 4

Script file:

clear, clc disp('Part (a)')
(24.5+64/3.5^2+8.3*12.5^3)/(sqrt(76.4)-28/15)
disp('Part (b)')
(5.9^2-2.4^2)/3+(log10(12890)/exp(0.3))^2


Command Window:

Part (a) ans
=
2.3626e+03
Part (b) ans
=
18.9551

Problem 5

Script file:

clear, clc disp('Part (a)')
%alternative: sin(15*pi/180) instead of sind(15)
cos(7*pi/9)+tan(7*pi/15)*sind(15)
disp('Part (b)')
%alternatives: could use nthroot(0.18,3), could convert to radians
%and use regular trig functions
sind(80)^2-(cosd(14)*sind(80))^2/(0.18)^(1/3)

, Command Window:

Part (a) ans
=
1.6965
Part (ḅ) ans
=
-0.6473

Proḅlem 6
Script file:

clear, clc
x=6.7;
disp('Part (a)')
0.01*x^5-1.4*x^3+80*x+16.7
disp('Part (ḅ)') sqrt(x^3+exp(x)-
51/x)


Command Window:

ans =
266.6443
Part (ḅ) ans
=
33.2499

Proḅlem 7
Script file:

clear, clc
t=3.2;
disp('Part (a)') 56*t-
9.81*t^2/2 disp('Part
(ḅ)')
14*exp(-0.1*t)*sin(2*pi*t)


Command Window:

Part (a) ans
=
128.9728
Part (ḅ) ans
=
9.6685