13 lines
404 B
Mathematica
13 lines
404 B
Mathematica
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function F = rational(x,N)
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%INTEGER Constrains variables to be rational
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%
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% F = RATIONAL(x,N) is used to constrain a variable to be rational in
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% the form x = y/N where y is integer
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%
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% For example, rational(x,10) will allow us to search over the numbers
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% 0,+-1/10, +-2/10, +- 3/10,...
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% See also BINARY, INTEGER, BINVAR, INTVAR, SEMIVAR
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y = intvar(numel(x),1);
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F = [reshape(x,[],1) == y/N];
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