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Numerical Methods:
  • LU decomposition for systems of linear equations
  • Numerical solutions of non-linear algebraic equations by Secant, Bisection and Newton-Raphson Methods
  • Numerical integration by trapezoidal and Simpson’s rules

Recent questions tagged numerical-methods

3 votes
1 answer
31
GATE IT 2004 | Question: 38
If f(l) = 2, f(2) = 4 and f(4) = 16, what is the value of f(3) using Lagrange's interpolation formula? 8 8(1/3) 8(2/3) 9
If f(l) = 2, f(2) = 4 and f(4) = 16, what is the value of f(3) using Lagrange's interpolation formula?88(1/3)8(2/3)9
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1 votes
1 answer
32
GATE IT 2006 | Question: 77
$x + y/2 = 9$ $3x + y = 10$ What can be said about the Gauss-Siedel iterative method for solving the above set of linear equations? it will converge It will diverse It will neither converge nor diverse It is not applicable
$x + y/2 = 9$$3x + y = 10$What can be said about the Gauss-Siedel iterative method for solving the above set of linear equations?it will convergeIt will diverseIt will...
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1 votes
1 answer
33
GATE IT 2006 | Question: 76
x + y/2 = 9 3x + y = 10 The value of the Frobenius norm for the above system of equations is $0.5$ $0.75$ $1.5$ $2.0$
x + y/2 = 93x + y = 10The value of the Frobenius norm for the above system of equations is$0.5$$0.75$$1.5$$2.0$
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8 votes
3 answers
34
GATE IT 2006 | Question: 28
The following definite integral evaluates to $\int_{-\infty}^{0} e^ {-\left(\frac{x^2}{20} \right )}dx$ $\frac{1}{2}$ $\pi \sqrt{10}$ $\sqrt{10}$ $\pi$
The following definite integral evaluates to$$\int_{-\infty}^{0} e^ {-\left(\frac{x^2}{20} \right )}dx$$$\frac{1}{2}$$\pi \sqrt{10}$$\sqrt{10}$$\pi$
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0 votes
3 answers
40
GATE CSE 1995 | Question: 2.15
The iteration formula to find the square root of a positive real number $b$ using the Newton Raphson method is $x_{k+1} = 3(x_k+b)/2x_k$ $x_{k+1} = (x_{k}^2+b)/2x_k$ $x_{k+1} = x_k-2x_k/\left(x^2_k+b\right)$ None of the above
The iteration formula to find the square root of a positive real number $b$ using the Newton Raphson method is$x_{k+1} = 3(x_k+b)/2x_k$$x_{k+1} = (x_{k}^2+b)/2x_k$$x_{k+1...
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0 votes
3 answers
41
GATE CSE 1994 | Question: 3.4
Match the following items (i) Newton-Raphson (a) Integration (ii) Runge-Kutta (b) Root finding (iii) Gauss-Seidel (c) Ordinary Differential Equations (iv) Simpson's Rule (d) Solution of Systems of Linear Equations
Match the following items(i) Newton-Raphson(a) Integration(ii) Runge-Kutta(b) Root finding(iii) Gauss-Seidel(c) Ordinary Differential Equations(iv) Simpson's Rule(d) Solu...
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3 votes
2 answers
45
GATE CSE 1997 | Question: 1.2
The Newton-Raphson method is used to find the root of the equation $X^2-2=0$. If the iterations are started from -1, the iterations will converge to -1 converge to $\sqrt{2}$ converge to $\sqrt{-2}$ not converge
The Newton-Raphson method is used to find the root of the equation $X^2-2=0$. If the iterations are started from -1, the iterations willconverge to -1converge to $\sqrt{2...
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7 votes
1 answer
49
GATE CSE 2012 | Question: 28
The bisection method is applied to compute a zero of the function $f(x) =x ^{4} – x ^{3} – x ^{2} – 4$ in the interval [1,9]. The method converges to a solution after ––––– iterations. (A) 1 (B) 3 (C) 5 (D) 7
The bisection method is applied to compute a zero of the function $f(x) =x ^{4} – x ^{3} – x ^{2} – 4$ in the interval [1,9]. The method converges to a solution aft...
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1 votes
0 answers
52
GATE CSE 2007 | Question: 28
Consider the series $x_{n+1} = \frac{x_n}{2}+\frac{9}{8x_n},x_0 = 0.5$ obtained from the Newton-Raphson method. The series converges to 1.5 $\sqrt{2}$ 1.6 1.4
Consider the series $x_{n+1} = \frac{x_n}{2}+\frac{9}{8x_n},x_0 = 0.5$ obtained from the Newton-Raphson method. The series converges to1.5$\sqrt{2}$1.61.4
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3 votes
1 answer
53
GATE CSE 2010 | Question: 2
Newton-Raphson method is used to compute a root of the equation $x^2 - 13 = 0$ with 3.5 as the initial value. The approximation after one iteration is 3.575 3.676 3.667 3.607
Newton-Raphson method is used to compute a root of the equation $x^2 - 13 = 0$ with 3.5 as the initial value. The approximation after one iteration is3.5753.6763.6673.607...
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0 votes
1 answer
55
GATE CSE 2002 | Question: 2.15
The Newton-Raphson iteration $X_{n+1} = (\frac{X_n}{2}) + \frac{3}{(2X_n)}$ can be used to solve the equation $X^2 =3$ $X^3 =3$ $X^2 =2$ $X^3 =2$
The Newton-Raphson iteration $X_{n+1} = (\frac{X_n}{2}) + \frac{3}{(2X_n)}$ can be used to solve the equation$X^2 =3$$X^3 =3$$X^2 =2$$X^3 =2$
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1 votes
1 answer
56
GATE CSE 2002 | Question: 1.2
The trapezoidal rule for integration gives exact result when the integrand is a polynomial of degree 0 but not 1 1 but not 0 0 or 1 2
The trapezoidal rule for integration gives exact result when the integrand is a polynomial of degree0 but not 11 but not 00 or 12
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30 votes
3 answers
57
GATE CSE 2006 | Question: 1, ISRO2009-57
Consider the polynomial $p(x) = a_0 + a_1x + a_2x^2 + a_3x^3$ , where $a_i \neq 0$, $\forall i$. The minimum number of multiplications needed to evaluate $p$ on an input $x$ is: 3 4 6 9
Consider the polynomial $p(x) = a_0 + a_1x + a_2x^2 + a_3x^3$ , where $a_i \neq 0$, $\forall i$. The minimum number of multiplications needed to evaluate $p$ on an input ...
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1 votes
1 answer
60
GATE CSE 1993 | Question: 01.3
Simpson's rule for integration gives exact result when $f(x)$ is a polynomial of degree $1$ $2$ $3$ $4$
Simpson's rule for integration gives exact result when $f(x)$ is a polynomial of degree$1$$2$$3$$4$
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