The polynomial shown below is a close approximation of the square root of x.

It is meant to work for values between 1 and a little more than 4.

Put in different values and see how well it does.

See how bad it is outside this range.

Enter a value:

-0.0185x =^{4}+0.1923x^{3}-07406x^{2}+1.5668x | 0 |

x^{1/2} = | 0 |

Difference: | 0 |