ag-gipp/GoUldI

<math xmlns='http://www.w3.org/1998/Math/MathML' display='inline'><semantics><mrow><msub><mi>p</mi> <mi>n</mi></msub><mo stretchy="false">(</mo><mi>x</mi><mo stretchy="false">)</mo><mo>=</mo><msub><mi>W</mi> <mi>n</mi></msub><mrow><mo>(</mo><mi>x</mi><mo>;</mo><msub><mi>a</mi> <mn>1</mn></msub><mo>,</mo><msub><mi>a</mi> <mn>2</mn></msub><mo>,</mo><msub><mi>a</mi> <mn>3</mn></msub><mo>,</mo><msub><mi>a</mi> <mn>4</mn></msub><mo>)</mo></mrow></mrow><annotation encoding='application/x-tex'>p_{n}(x)=W_{n}\left(x;a_{1},a_{2},a_{3},a_{4}\right)</annotation></semantics></math>