QUESTION 1) Write a code using MATLAB. a) Take a numerical input and an alphabet

Question

QUESTION 1)

Write a code using MATLAB.

a) Take a numerical input and an alphabet from the user,

then convert this numerical input into temperature in Celsius or in

Fahrenheit based on the alphabet. (i.e input [32, F]=> output [0, C]).

The result should be delivered to the main workspace.

b) Take three numbers

and an alphabet from the user,

then converting the number into Coordinate to other two Coordinate Systems.

(i.e input [##,##,##,C] => output [##,##,##,Y], [##,##,##,S]).

The result should be delivered in the main workspace.

Explanation / Answer

Ans)

=============part-a matlab code======

function [ temp2, str2 ] = temp_conv( temp1,str1 )
%TEMP_CONV Summary of this function goes here
% Detailed explanation goes here

if str1=='C' % if entered string is 'C'
  
temp2=((9/5)*temp1)+32; % convert to farenheit
str2='F';
end

if str1=='F' %if entered string is 'F'
  
temp2=(temp1-32)*5/9; % convert to celsius
str2='C';
end

end

====================

the function when run from command window

>> [temp str]=temp_conv(0,'C')

temp =

32

str =

F

>>

========================

===Part-b matlab code======

function [ cor1,cor2 ] = coordinate_conv( var1,var2,var3,str1 )
%COORDINATE_CONV Summary of this function goes here
% Detailed explanation goes here

if str1=='Y' %if given co-ordinates are cartesian
  
x=var1;y=var2;z=var3;
  
r=sqrt(x^2+y^2);
theta=atan(y/x);
  
cor1={r theta z 'C'}; %cyclindrical co-ordinates
  
p=sqrt(x^2+y^2+z^2);
theta=atan(y/x);
phi=atan(sqrt(x^2+y^2)/z);
cor2={p theta phi 'S'};%spherical co-ordinates
  
  
end

if str1=='C' %if given co-ordinates are cylindrical
  
r=var1;theta=var2;z=var3;
  
x=r*cos(theta);
y=r*sin(theta);
  
cor1={x y z 'Y'}; %cartesian co-ordinates
  
p=sqrt(r^2+z^2);
phi=atan(r/z);
  
cor2={p theta phi 'S'};%spherical co-ordinates
  
  
end

if str1=='S' %if given co-ordinates are spherical
  
p=var1;theta=var2;phi=var3;
  
x=p*cos(theta)*sin(phi);
y=p*sin(theta)*sin(phi);
z=p*cos(phi);
cor1={x y z 'Y'}; %cartesian co-ordinates
  
r=p*sin(phi);
z=p*cos(phi);
  
cor2={r theta z 'C'}; %cyclindrical co-ordinates
  
  
end

end

==============

results when run from command window

>> clear
>> [cord1 cord2]=coordinate_conv(3,4,5,'Y')

cord1 =

[5] [0.9273] [5] 'C'

cord2 =

[7.0711] [0.9273] [0.7854] 'S'

>>

=============================

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