Question

Example 3: From the given data y at x = 2 is,
0
1
3
Y
1
4
88​

Answer 1

We use numerical method to find approximate solution of problems by numerical calculations with aid of

calculator. For better accuracy we have to minimize the error.

Error = Exact value – Approximate value

Absolute error = modulus of error

Relative error = Absolute error / (Exact value)

Percentage error = 100 X Relative error

The error obtained due to rounding or chopping is called rounding error.

For example π = 3.14159 is approximated as 3.141 for chopping (deleting all decimal)

or 3.142 for rounding up to 3 decimal places.