Display a variable and its units

I know how to use the display(X) function to display a variable I have solved for. So, if my X = 25, and I need it to display 25 ft/lb, how would I do this?

[Dianne Claire Nocon]

fprintf('The answer is %.2f ft/lb.\n', x)

Answer 1

[Karan Gill]

Units are now in MATLAB if you have Symbolic Math Toolbox. Try this, and see the tutorial: https://www.mathworks.com/help/symbolic/units-of-measurement-tutorial.html:

>> u = symunit; 
>> x = 2*u.meter 
x = 
2*[m]

>> x = rewrite(x,u.ft) 
x = 
(2500/381)*[ft]

>> double(separateUnits(x)) 
ans = 
    6.5617

See the tutorial: https://www.mathworks.com/help/symbolic/units-of-measurement-tutorial.html

[Damien Fernando]

Not useful at all

[Samuel Katongole]

I am also looking for somwthing similar to what Damien is looking for, but mine is when i want to print thw units along with the values especially using the fprintf function....I too need help here..

[Husam Alsaleh]

i am also using fprintf and i need to display my units next to the numbers

Answer 2

[Thomas Green]

Hey, I just want to thank you guys for 1. always making it more complicated than it needs to be 2. adding statements/functions that are never really seen but could have easily could have produced the same result with a common command and most importantly 3.NEVER SHOWING AN OUTPUT. Like do you really think you are helping????

[Thomas Jeffrey]

True that

[Medinah Lee]

LOL Preach!

Answer 3

[Sven]

You can use fprintf as follows:

X = 25;
fprintf('The answer is %d ft/lb\n', X)

If your answer will not be a nice round number like "25", you can replace the %d above with, say, %0.2f to print two decimal places.

[Ryan]

Thank you! My variable is 7460.1 lbf That works very well, however it printed "The answer is '7.460094e+003 lbf' just like I wanted it to, but then it printed 7.4601e+003 the same line. Is it possible to get rid of the second variable display using this method?

[Karan Gill]

Units are now in MATLAB if you have Symbolic Math Toolbox. See the tutorial: https://www.mathworks.com/help/symbolic/units-of-measurement-tutorial.html

Posted a separate answer below so that OP can accept.

[Damien Fernando]

Great answer, ty

[Samuel Katongole]

Wow..this by Sven works...

[Rakesh Chaudhary]

good..thanks

Answer 4

[Ryan]

I got it figured out. Thanks for the help! If I do X = 25; fprintf('The answer is %.2f ', X) display('unit');

It will put The answer is 25.00 unit and then output my next answer on the next line.

[Michael Darwish]

Thank you, that is exactly what I was looking for.