1. Find Solution of an equation 1/x using Simpson's 3/8 rule
x1 = 1 and x2 = 2
Step value (h) = 0.25Solution:Equation is `f(x)=(1)/(x)`.
The value of table for `x` and `y`
| x | 1 | 1.25 | 1.5 | 1.75 | 2 |
|---|
| y | 1 | 0.8 | 0.6667 | 0.5714 | 0.5 |
|---|
Method-1:Using Simpson's `3/8` Rule
`int y dx=(3h)/8 [(y_0+y_4)+2(y_3)+3(y_1+y_2)]`
`int y dx=(3xx0.25)/8 [(1 +0.5)+2xx(0.5714)+3xx(0.8+0.6667)]`
`int y dx=(3xx0.25)/8 [(1 +0.5)+2xx(0.5714)+3xx(1.4667)]`
`int y dx=(3xx0.25)/8 [(1.5)+(1.1429)+(4.4)]`
`int y dx=0.6603`
Solution by Simpson's `3/8` Rule is `0.6603`
Method-2:Using Simpson's `3/8` Rule
`int y dx=(3h)/8 [y_0+3y_1+3y_2+2y_3+y_4]`
`y_0=1`
`3y_1=3*0.8=2.4`
`3y_2=3*0.6667=2`
`2y_3=2*0.5714=1.1429`
`y_4=0.5`
`int y dx=(3xx0.25)/8 *(1+2.4+2+1.1429+0.5)`
`int y dx=(3xx0.25)/8 *(7.0429)`
`int y dx=0.6603`
Solution by Simpson's `3/8` Rule is `0.6603`
This material is intended as a summary. Use your textbook for detail explanation.
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