MATLAB: Multiplication of 2 sets to get all possible outcomes

combinationmultiplicationpossibilityset

Hello everyone!

I've been wondering how can I have all posible multiplication outcomes of 2 sets of numbers:

a = 0:0.01:0.2;
b = 0:pi/12:pi;

I want to know all 273 possible multiplications between a and b:

a*sin(b)

Does anyone have an idea how to make it?

a = 0:0.01:0.2;
b = 0:pi/12:pi;
[A,B]=meshgrid(a,sin(b));
C=A.*B;
c=unique(C(:)');%if you only want unique outcomes.

Your two arrays don't have the same number of non nan elements (10 vs 11), then the mean is

(1.5603*sum(~isnan(A)) + 1.4139*sum(~isnan(B)))/(sum(~isnan(A))+sum(~isnan(B))) = 1.4832

There are two approaches you could use. One is just to specify the width of each field:

fprintf(fid{i},'%12s\t%12s\t%9.6f\n', ...)

Another is to convert your cell arrays into arrays of strings so each country name is padded with blanks until they are the same length:

country1 = char(R_Value{:,1});
country2 = char(R_Value{:,2});
....
      fprintf(fid,'%s\t%s\t%9.6f\n',country1(j,:),country2(j,:),R_Value{j,3});

Either way, you need to provide extra formatting info for the numbers to get them lined up.