![]() #Matlab find codeHere we also discuss the introduction and roots function in Matlab along with different examples and its code implementation. Let our input polynomial be x^3 – 3x^2 – 4x + 12Īs we can see in the output, the roots of the polynomial x^3 -3x^2 -4x 12 are -2, 3, 2 Recommended Articles.In this example, we will take a polynomial of degree 3 with real roots. We will follow the following steps:Īs we can see in the output, we have obtained complex roots for the input polynomial x^2 + 1, as expected by us. In this example, we will take a polynomial of degree 2 and with complex roots. It returns a vector that contains the linear indices. The relational expression can be used in conjunction with find to find the indices of elements that meet the given condition. Let our input polynomial be x^5+2x^2 + x-2Īs we can see in the output, we have obtained complex roots for the input polynomial x^5 +2x^2 + x -2, as expected by us. The find() function in MATLAB is used to find the indices and values of non-zero elements or the elements which satisfy a given condition.In this example, we will take a polynomial of degree 5. Let us now take some examples where polynomials have non-real roots. In the above 2 examples, we had polynomials with real roots. Pass this column vector as an argument to the root functionĪs we can see in the output, roots of the input polynomial x^3 – 5x^2 +2x +8 are 4, 2, -1, which are the same as expected by us.Let our input polynomial be x^3 –5x^2 + 2x+8.In this example, we will take a polynomial of degree 3. John's code accounts for the first argument but not the second. Passthiscolumn vector as an argument to the root functionĪs we can see in the output, roots of the input polynomial x^2 – x -6 are 3, -2, which are the same as expected by us.Initialize the input polynomial in the form a column vector Today on the newsgroup, a user wanted help finding when values in a matrix matched some other values (see the post). ![]()
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