my fprintf statements keep repeting themself I just want it to be print one time

%{
 This script allows the users to input two vectors and then compute their dot product , cross product , sum, and diference
%}
clear
a=input('Enter vector a in the form [ x y z] :\n');
b=input('Enter vector vb in the form [ x y z] :\n');
if isempty(a)
    a=[0 0 0];
end 

if isempty(b)
    b=[0 0 0];
end

ua=a./norm(a);
ub=b./norm(b);
d=dot(a,b);
c=cross(a,b);
sum=a+b;
di=a-b;
fprintf('the unit vector of a is %0.3f \n',ua)
fprintf('the unit vector of b is %0.3f \n',ua)
fprintf('the dot product a.b= %0.3f and the cross product axb= %0.3f \n',d , c)
fprintf('the sum of a+b= %0.3f and the difference of a-b= %0.3f \n',sum , di )

Answer 1

[Star Strider]

Provide numeric field designatoors for each element in the unit vectors (I added the square brackets, remove them if yoou don’t want them) —

a = [1 2 3];
b = [4 5 6];

ua=a./norm(a);
ub=b./norm(b);
d=dot(a,b);
c=cross(a,b);
sum=a+b;
di=a-b;
fprintf('the unit vector of a is [%0.3f %0.3f %0.3f]\n',ua)

the unit vector of a is [0.267 0.535 0.802]

fprintf('the unit vector of b is [%0.3f %0.3f %0.3f]\n',ua)

the unit vector of b is [0.267 0.535 0.802]

fprintf('the dot product a.b= %0.3f and the cross product axb= %0.3f \n',d , c)

the dot product a.b= 32.000 and the cross product axb= -3.000 
the dot product a.b= 6.000 and the cross product axb= -3.000 

fprintf('the sum of a+b= %0.3f and the difference of a-b= %0.3f \n',sum , di )

the sum of a+b= 5.000 and the difference of a-b= 7.000 
the sum of a+b= 9.000 and the difference of a-b= -3.000 
the sum of a+b= -3.000 and the difference of a-b= -3.000 

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[Aminata camara]

this still repete the line but I got it where all the data are in the same line . Thank you for your help

[Walter Roberson]

I recommend compose() for this purpose.

[Star Strider]

My pleasure!

If my Answer helped you solve your problem, please Accept it!

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