%% Holly Moore
% Matlab for Engineers, Third Edition
% Chapter 7 Homework Solutions
clear,clc, close all
%% Problem 7.1
x = input('Enter a value of x:  ')
result = sin(x)
%% Problem 7.3
area = input('Enter the area of the base of a cone ')
h = input('Enter the height of a cone ')
volume = 1/3*area*h
%% Problem 7.5
first_name = input('Enter your first name, inside single quotes ')
last_name = input('Enter your last name, inside single quotes ')
disp(['Your name is: ',first_name,' ',last_name])
%or
first_name=input('Enter your first name ','s');
last_name = input('Enter your last name ','s');
disp(['Your name is: ', first_name,' ',last_name])
%% Problem 7.7
x = input('Enter an array of numbers ')
num = length(x);
disp(['You entered ',num2str(num),' numbers'])
%% Problem 7.9
num = 1:6;
mult = num*6;
table =[num;mult];
fprintf('%5.0f times 6 is %3.0f \n',table)
%% Problem 7.11
inches = 1:10;
angstroms = inches*2.54*10^8;
disp('Inches Are to big to measure in Angstroms')
disp('Inches   Angstroms')
fprintf('%5.0f     %7.2e \n',[inches;angstroms])
%% Problem 7.13
start = 0;
stop = 200;
incr = input('Enter the temperature increment ');
F=start:incr:stop;
K = (F+459.6)*5/9;
disp('Temperature Conversions')
disp('   F       K')
fprintf('%5.0f  %8.2f \n', [F;K])
%b
start = input('Enter the starting temperature ');
incr = input('Enter the increment ');
stop = start +incr*24;
C = start:incr:stop;
R = (C + 273)*9/5;
disp('Temperature Conversion')
disp('  C        R')
fprintf('%5.0f   %8.2f \n',[C;R])
%c
start = input('Enter the starting temperature ')
incr = input('Enter the increment ')
num = input('Enter the number of lines ')
stop = start + incr*(num-1);
C = start:incr:stop;
F = 9/5*C + 32;
disp('Temperature Conversion')
disp('   C        F')
fprintf('%5.0f   %8.2f \n',[C;F])