How to find roots of polynomial
To find roots of a polynomial, input expression with respect to an independent variable and then tap "0s". Select type of equation as polynomial and the app will auto find all the roots.
For example for polynomial 12 × (X)(5) - 2 × (X)(4) - 86 × (X)(3) + 86 × (X)(2) + 2 × X - 12 where X is an independent variable, input the expression as shown in snapshot below.
Select independent variable as X that was used in the expression. We also need to input the value of maximum number of roots to find. This value should be at least equal to degree of our input polynomial. We can continue with the default value of 10 as we know the degree of our input polynomial is 5.
Result:
Approx Polynomial Roots - Real and Imaginary parts:
2.0000000000 -0.0000000000i
0.5000000000 0.0000000000i
-3.0000000000 0.0000000000i
-0.3333333333 0.0000000000i
1.0000000000 -0.0000000000i
The above result has all imaginary parts as 0 because our input polynomial has only real roots. The app will show imaginary part if any root is complex.
