CSIT 3rd Semester
Numerical Method Board Question Paper 2081


CSC 212-2081 ✡
Tribhuvan University
Institute of Science and Technology
2081
Bachelor Level/Second Year/Third Semester/Science
Computer Science Information Technology (CSC 212)
(Numerical Method)
(New Course)
Full Marks:60 Pass Marks:24 Time:3 hours

Candidates are required to give their answers in their own words as for as practicable.
The figures in the margin indicate full marks

Section A
Long Answer Questions
Attempt any Two question.
[2x10=20]
1.

What are inherent errors? Derive the Newton Raphson method for solving non-linear equation and using this method solve x²-5x+6=0, calculate upto 3 decimal places.

2.

What are the limitations of direct methods for solving a system of linear equations? How Gauss Seidel method differs from Jacobi iteration? Solve the following system of linear equation using Jacobi iteration method.
2x-7y-10z=17
5x+y+3z=14
x+ 10y +9z=7

3.

Write an algorithm and program to implement Lagrange interpolation method.

Section B

Attempt any Eight questions

[8x5=40]
4.

Consider the following data points estimate the f(0.6) using Newton's interpolation formula.

x0.10.20.30.40.5
f(x)2.683.043.383.693.97

5.

What is regression analysis? Fit a second order polynomial for the following data values.

x246810
y1.42.02.42.62.8

6.

What is numerical differentiation? The table below gives the values of distance travelled by a vehicle at various time interval, estimate the velocity and acceleration at x=4.

Time (x)124810
Distance (y)0152127

7.

What is application of numerical integration? Find the value of integration for ∫₁² eˣ/x dx using Simpson's 3/8 rule with n=6.

8.

Solve the following system of linear equations using Gauss-Jordan elimination method.
x+2y-3z=4
2x+4y-6z=8
x-2y+5z=4

9.

Given the data points below

X1.03.04.0
f(x)1.54.59.0

Find cubic spline which belongs to 1<=x<=3 and estimate f(2) using cubic splines.

10.

What is differential equation? Differentiate between ODE and PDE with example.

11.

Solve dy/dx = x/y, y (0) =1, at x=0.4 using Runge-Kutta's 4ᵗʰ order method.

12.

Solve the Poisson equation ∂²u/∂x² + ∂²u/∂y² =64xy, 0≤x≤1, 0≤y≤1 with boundary conditions:
u(0,y)=0, u(x,0)=0, u(1,y)=150, u(x,1)=150 and h=1/3.