ag-gipp/GoUldI

<math xmlns='http://www.w3.org/1998/Math/MathML' display='inline'><semantics><mrow><mrow><mo maxsize="2.047em" minsize="2.047em">(</mo><mfrac linethickness="0"><mi>n</mi><mi>k</mi></mfrac><mo maxsize="2.047em" minsize="2.047em">)</mo></mrow><mo>=</mo><mfrac><mrow><mi>n</mi><mo>!</mo></mrow><mrow><mi>k</mi><mo>!</mo><mo stretchy="false">(</mo><mi>n</mi><mo>−</mo><mi>k</mi><mo stretchy="false">)</mo><mo>!</mo></mrow></mfrac></mrow><annotation encoding='application/x-tex'>\binom{n}{k} = \frac{n!}{k! (n-k)!}</annotation></semantics></math>