Use MATLAB in all problems and be sure to use suitable MATLAB variable names. 18

Question

Use MATLAB in all problems and be sure to use suitable MATLAB variable names. 18.1 (User-Defined Functions) Write a user-defined function that does the following depending on the number of inputs: 6 inputs variables6 input 4 double variables Distance of line between 2 Points Circle formed by 3message: incorrect variables Calculate Radius of Provide error oints number of inputs The Radius of a circle given 3 points in space is: Radius- where Ln= length of each side of the triangle L1 * L2 * L;3 tri Atri- area of triangle formed by 3 points. Example of 3 points input and resulting radius: Point Point 1 2.9987396 0.5287587 Point 2 2.9412441 0.7881040 Point 3 2.8613640 1.0414513 radius xl,yl: x2,y2: x3,y3 Radius 3.045

Explanation / Answer

ScreenShot

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Program

%variable initialization
x1=0.0;
y1=0.0;
x2=0.0;
y2=0.0;
x3=0.0;
y3=0.0;
%circle radius calculation function
function radius=circleRadius(x1,y1,x2,y2,x3,y3)
   L1=double(sqrt(((x2-x1)^2)+((y2-y1)^2)));
   L2=double(sqrt(((x3-x2)^2)+((y3-y2)^2)));
   L3=double(sqrt(((x3-x1)^2)+((y3-y1)^2)));
   Atri=double((1/2)*((x1*(y2-y3))-(x2*(y1-y3))+(x3*(y1-y2))));
   radius=(L1*L2*L3)/(4*Atri);
end
%Line distance calculation function
function distance=lineDistance(x1,y1,x2,y2)
   distance=double(sqrt(((x2-x1)^2)+((y2-y1)^2)));
end
%Prompt the user input
inputValues=input('Enter points values:');
%find the count of input
n=numel(inputValues);
%less than 4 or greater than 6 error message
if n<4 | n>6
   fprintf('In correct number of inputs!!')
   %distance function call and print
elseif n==4
   distnace=lineDistance(inputValues(1),inputValues(2),inputValues(3),inputValues(4));
   fprintf('Point          X          Y ')
   fprintf('======        ====       ==== ')
   fprintf('Point1        %1.7f       %1.7f ',inputValues(1),inputValues(2))
   fprintf('Point2        %1.7f       %1.7f ',inputValues(3),inputValues(4))
   fprintf("Radius=%1.3f ",distnace)
   %circle radius function call and print

else
   radius=lineDistance(inputValues(1),inputValues(2),inputValues(3),inputValues(4),inputValues(5),inputValues(6));
   fprintf('Point          X          Y ')
   fprintf('======        ====       ==== ')
   fprintf('Point1        %1.7f       %1.7f ',inputValues(1),inputValues(2))
   fprintf('Point2        %1.7f       %1.7f ',inputValues(3),inputValues(4))
   fprintf('Point3        %1.7f       %1.7f ',inputValues(5),inputValues(6))
   fprintf("Radius=%1.3f ",radius)
end

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