Multiple choice questions - 1st online test: Numerical Methods.
1. The shifting operator is denoted by ________.
A. E
B. nabla
C. omega
D. T
Ans- A
2. The process of finding the values inside the interval (X0, Xn) is called
A. Interpolation
B. Extrapolation
C. Iterative
D. Polynomial equation
Ans- A
3. The Delta of power two is called the ____order difference operator.
A. First B. second
C. Third D. Fourth
Ans- B
4. Newton forward interpolation formula is used for _________ intervals.
A. open B. unequal
C. equal D. closed
Ans- C
5. For the given distributed data find the value of Δ3y0 is?
x 3.60 3.65 3.70 3.75
y 36.59 38.47 40.44 42.52
8 5 7 1
A. 0.095 B. 0.007
C. 1.872 D. 0.123
Ans- B
6. By using Newton’s backward difference table form the following data:
f (30) = 0.5000, f (35) = 0.5736, f (40) = 0.6428, f (45) = 0.7071. What is the value of ∇3yn?
A. - 0.0049 B. -1.872
C. - 0.0005 D. -0.0469
Ans- C
7. In case of Newton Backward Interpolation Formula which equation is correct to find u?
A. . (x – xn) h = u B. x + xn = uh
C. x – xn = u D x – xn = uh
Ans- D
8. The relationship between E and delta is __________.
A. E =1-delta
B. E =1+delta
C. E = delta-1
D. E = delta
Ans- B
9. Let h be the finite difference, then forward difference operator is defined by ____.
A. f(x) = f(x+h)-f(x)
B. f(x) = f(x-h)-f(x)
C. f(x) = f(x*h)
D. f(x) = f(x)
Ans- A
10. Find Δ (x + cos x)?
A. 1+2sin(x+1/2).sin1/2
B. 1-2sin(x+1/2).sin1/2
C.1-2sin(x-1/2).sin1/2
D.1+2sin(x-1/2).sin1/2
Ans-B