Four point Forward difference formula calculator

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Method and examples

Four point Forward difference formula

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Method

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estimate `f^(')` or `f^('')` ()

difference formula

1. Using Four point Forward difference formula
x 1 1.05 1.10 1.15 1.20 1.25 1.30
f(x) 1 1.02470 1.04881 1.07238 1.09545 1.11803 1.14018

estimate `f^'(1.10)`,`f^('')(1.10)`
1. Using Four point Forward difference formula
x 1 1.05 1.10 1.15 1.20 1.25 1.30
f(x) 1 1.02470 1.04881 1.07238 1.09545 1.11803 1.14018

estimate `f^'(1.15)`,`f^('')(1.15)`

f(x) =

estimate `f^(')` or `f^('')` ()

h =

difference formula

exact value of f', f'' and also error for each estimation

`f(x)=cosx` and `h = 0.05`, estimate `f^'(1.2)`,`f^('')(1.2)`
using Four point Forward difference formula
Also find exact value of f', f'' and error for each estimation
`f(x)=2x^3+x^2-4` and `h = 0.5`, estimate `f^'(2.5)`,`f^('')(2.5)`
using Four point Forward difference formula
Also find exact value of f', f'' and error for each estimation
`f(x)=xlnx` and `h = 1`, estimate `f^'(5)`,`f^('')(5)`
using Four point Forward difference formula
Also find exact value of f', f'' and error for each estimation
`f(x)=sinx` and `h = 0.1`, estimate `f^'(0.8)`,`f^('')(0.8)`
using Four point Forward difference formula
Also find exact value of f', f'' and error for each estimation

Decimal Place =

Trigonometry Function Mode =

Formula
For first derivatives : Four-point CDF
For second derivatives : Four-point FDF, BDF

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