Sample 1. Find a root of f(x) = x**5 - 3x**4 + x**3 - 4x**2 + x - 6 = 0. Iteration Newton Approximation 0 3.120000000000000000000000000000000000000000000000000000000000 1 3.120656718532108533919391265947916793506741449899073468862023 2 3.120656215327022122238354686569835883519704471397219749798884 3 3.120656215326726500470956115551705969611230193197937042123082 4 3.120656215326726500470956013523797484654623935599078168006617 5 3.120656215326726500470956013523797484654623935599066014988828 6 3.120656215326726500470956013523797484654623935599066014988828 Sample 2. 109 terms were added Zeta(3) = 1.202056903159594285399738161511449990764986292340498881792272 Sample 3. 22 values were tested p = 1000000000000000000000000000000000000000000000000000000000000000659661 All results were ok.