How to split a number in MATLAB?

Matlab: setting number of Significant Figures?

• I have this code at the end of my Matlab program which outputs my Resultant Moment in Cartesian Vector Notation: disp(['Resultant Moment: ' num2str(Moment(1,1)) 'i + ' num2str(Moment(1,2)) 'j + ' num2str(Moment(1,3)) 'k N m']) The only other requirement for my program is that my outputted values must be to 3 significant figures. I've searched on the internet but can't find something specific that allows me to set the number of significant figures to 3. How do I output my result in 3 sig figs?

• Answer:

  Check this function out! [strOut] = sigfig(num, nSigFig, dummy) Rounds number to nSigFig number of significant figures and outputs a string Dummy in 3rd argument to have padded zeros ex: sigfig(3.15, 2) gives "3.2" sigfig(3.75, 2, []) gives "3.8e+0" try this ----> sigfig(num2str(Moment(1,1),3) and same for the other ones hope this helps!