Quiz Chapter 05.05: Spline Method of Interpolation

MULTIPLE CHOICE TEST

(All Tests)

BACKGROUND

(More on Spline Interpolation)

INTERPOLATION

(More on Interpolation)


Pick the most appropriate answer


1. The following nn data points, (x1,y1),(x2,y2),...,(xn,yn)\left( x_{1}, y_{1} \right), \, \left( x_{2}, y_{2} \right), \, ... \, , \, \left( x_{n}, y_{n} \right) are given. For conducting quadratic spline interpolation the xx-data needs to be

 
 
 
 

2. In cubic spline interpolation,

 
 
 
 

3. The following incomplete yy vs. xx data is given

x x 1 1 2 2 4 4 6 6 7 7
y y 5 5 11 11 ???? ???? 32 32

The data is fit by quadratic spline interpolants given by

      • f(x)=ax1,1x2f (x) = ax - 1, \, 1 \leq x \leq 2
      • f(x)=2x2+14x9,2x4f (x) = -2x^{2} + 14x - 9, \, 2 \leq x \leq 4
      • f(x)=bx2+cx+d,4x6f (x) = bx^{2} + cx + d, \, 4 \leq x \leq 6
      • f(x)=25x2303x+928,6x7f (x) = 25x^{2} - 303x + 928, \, 6 \leq x \leq 7

where a,b,c,a, \, b, \, c, and dd, are constants. The value of cc is most nearly

 
 
 
 

4. The following incomplete yy vs. xx data is given

x x 1 1 2 2 4 4 6 6 7 7
y y 5 5 11 11 ???? ???? 32 32

The data is fit by quadratic spline interpolants given by

      • f(x)=ax1,1x2f (x) = ax - 1, \, 1 \leq x \leq 2
      • f(x)=2x2+14x9,2x4f (x) = -2x^{2} + 14x - 9, \, 2 \leq x \leq 4
      • f(x)=bx2+cx+d,4x6f (x) = bx^{2} + cx + d, \, 4 \leq x \leq 6
      • f(x)=ex2fx+g,6x7f (x) = ex^{2} - fx + g, \, 6 \leq x \leq 7

where a,b,c,d,e,f,a, \, b, \, c, \, d, \, e, \, f, and gg, are constants. The value of dfdx\dfrac{df}{dx} at x=2.6x = 2.6 is most nearly

 
 
 
 

5. The following incomplete yy vs. xx data is given

x x 1 1 2 2 4 4 6 6 7 7
y y 5 5 11 11 ???? ???? 32 32

The data is fit by quadratic spline interpolants given by

      • f(x)=ax1,1x2f (x) = ax - 1, \, 1 \leq x \leq 2
      • f(x)=2x2+14x9,2x4f (x) = -2x^{2} + 14x - 9, \, 2 \leq x \leq 4
      • f(x)=bx2+cx+d,4x6f (x) = bx^{2} + cx + d, \, 4 \leq x \leq 6
      • f(x)=25x2303x+928,6x7f (x) = 25x^{2} - 303x + 928, \, 6 \leq x \leq 7

where a,b,c,a, \, b, \, c, and dd, are constants. What is the value of1.53.5f(x)dx\, \displaystyle\int_{1.5}^{3.5} f (x) \, dx?

 
 
 
 

6. A robot needs to follow a path that passes through six data points as shown in the figure.

MC05.05 Question 6 Chart

To find the shortest path that is also smooth, you would recommend which of the following?