MATLAB: Given a set of numers how many of them should I use for an specific result

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For example, I have 3 and -4 and I need to know how many 3s and -4s I need to get 22 as result

I already know the answer. But I need to know how to generate it on matlab

[ 3 3 3 3 3 3 3 3 3 3 -4 -4] the sum of the elements is equal to 22

I had to use ten 3s and two -4

Best Answer

See https://www.mathworks.com/matlabcentral/answers/299663-solving-diophantine-equations-in-matlab

Related Solutions

MATLAB: Undefined function or variable ‘numer’.

You are looking at a Mupad routine for which there is no MATLAB interface. You will need to use

feval(symengine, 'numer', expression)

MATLAB: Problem with if function and decimal numers

The problem was using fix instead of rounding. Try this where I use int32() to cast to the nearest integer. I also cleaned up your if to make it more efficient and reduce the number of if tests by a factor of 10.

a=1:0.1:2;
for i=1:1:10
  angoloutile(i)=a(i);
end
for j=1:1:10
  integ = fix(angoloutile(j));
  fract = abs(angoloutile(j)- integ);
  fract=fract*10;
  deci=int32(fract);
  fprintf('j = %d, angoloutile(j) = %f, integ = %d, fact = %f, deci = %d\n', ...
    j, angoloutile(j), integ, fract, deci);
  if deci == 1
    angoloutile(j)=angoloutile(j)+0.5;
  elseif deci == 2
    angoloutile(j)=angoloutile(j)-0.08;
  elseif deci == 3
    angoloutile(j)=angoloutile(j)-0.12;
  elseif deci == 4
    angoloutile(j)=angoloutile(j)-0.16;
  elseif deci == 5
    angoloutile(j)=angoloutile(j)-0.20;
  elseif deci == 6
    angoloutile(j)=angoloutile(j)-0.24;
  elseif deci == 7
    angoloutile(j)=angoloutile(j)-0.28;
  elseif deci == 8
    angoloutile(j)=angoloutile(j)-0.32;
  elseif deci == 9
    angoloutile(j)=angoloutile(j)-0.36;
  end
end
% Print to command window.
angoloutile

Best Answer

Related Solutions

MATLAB: Undefined function or variable ‘numer’.

MATLAB: Problem with if function and decimal numers

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