MATLAB: How to display answer in a particular format

display

i got an answer as

-7.28135827387422e-05

1.87033878860991e-35

3.860575156847749e+003

i wanted to get the answers as

72.813

18.703

38.605

i want only this format and the value should be positive

how to do the conversion after getting the value….. please do reply…

Best Answer

Try this:

a = -7.28135827387422e-05
aString = num2str(a)
decimalLocation = strfind(aString, '.')
aString = [aString(1:decimalLocation-1), aString(decimalLocation+1), '.', aString(decimalLocation+1:decimalLocation+3)]
aNumber = str2double(aString)
b = 1.87033878860991e-35
bString = num2str(b)
decimalLocation = strfind(bString, '.')
bString = [bString(1:decimalLocation-1), bString(decimalLocation+1), '.', bString(decimalLocation+1:decimalLocation+3)]
bNumber = str2double(bString)

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MATLAB: Strrep for more replacing using if

Remove the semi-colons and see what happens ...

str = 'hello sport art art_u' ; % example string
str1 = strrep(str,'sport','1')
str2 = strrep(str1,'art','2') % not what you want
str3 = strrep(str2,'art_u','3')

You can switch the last two statements:

    str2 = strrep(str1,'art_u','3') 
    str3 = strrep(str2,'art','2')

NB You most likely want to assign (A = B) and not compare (A == B)

MATLAB: Matching two numbers using only 2 decimal points

A = 3.82; 
B = 3.829;
C = 3.82; 
D = 3.8;
Astr = num2str(A);
Bstr = num2str(B);
Astr = Astr(strfind(Astr,'.'):end);
Bstr = Bstr(strfind(Bstr,'.'):end);
if length(Astr) < 3,  Astr = strcat(Astr,'0');  end
if length(Bstr ) < 3,  Bstr = strcat(Bstr,'0');  end
strcmp(Astr(1:3),Bstr(1:3))

Best Answer

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MATLAB: Strrep for more replacing using if

MATLAB: Matching two numbers using only 2 decimal points

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