MATH-6330 - Numerical Methods oed answer key

Showing 161 to 180 of 256 total answers.

#MATH-6330
Awesome StudentQuestion • Numerical Methods

Which of the following statements is true for the function f(x) = -e x + sin x, when 0 is used as an initial value:

Answer

Newton’s method cannot be used

#MATH-6330
Awesome StudentQuestion • Numerical Methods

How much error would be observed for the integral of f(x) = sin2x + 5 for an interval of [0,1] if n = 1 or if n = 2?

Answer

almost negligible

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Awesome StudentQuestion • Numerical Methods

If the function, f(x) = cos3x was approximated by the polynomial, P(15) = -02, the amount of error approximately 005

Answer

True

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Awesome StudentQuestion • Numerical Methods

In performing Gauss-Jordan method, although there is no specific procedure to perform this, it is more convenient to

Answer

Eliminate all elements below and above at once

#MATH-6330
Awesome StudentQuestion • Numerical Methods

With the Lagrange form, it is ___________ to pass from one interpolation polynomial to another of degree one greater

Answer

inconvenient

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Awesome StudentQuestion • Numerical Methods

Gaussian elimination has no specific row operations Various ways can be employed but may come up with the same answer

#MATH-6330
Awesome StudentQuestion • Numerical Methods

The approximate value of f(x) = e x using the first five terms of the Maclaurin Series center at when x = 1, c =0 is

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Awesome StudentQuestion • Numerical Methods

The eigenvalues that corresponds to the characteristic polynomial are =CE=BB2-4=CE=BB+3 are =CE=BB = 1 and =CE=BB = -3

#MATH-6330
Awesome StudentQuestion • Numerical Methods

Which is true about the error when approximating the integral of the linear function f(x) = 3x for an interval of [0,1]?

#MATH-6330
Awesome StudentQuestion • Numerical Methods

Secant method is usually the best option if the function doesn’t have an exact formula but just a pair of x and y values.

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Awesome StudentQuestion • Numerical Methods

Simpson's rule is a numerical method that approximates the value of a definite integral by using third degree polynomials

#MATH-6330
Awesome StudentQuestion • Numerical Methods

An additional benefit of the power method is that the corresponding eigenvector is obtained as a by-product of the method.

#MATH-6330
Awesome StudentQuestion • Numerical Methods

Horner’s method which is a method for finding roots of a polynomial equation f(x) =0 is almost similar to Newton’s method.

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Awesome StudentQuestion • Numerical Methods

The approximated root using the secant method lies within the two initial points which is used to project the secant line.

#MATH-6330
Awesome StudentQuestion • Numerical Methods

Trapezoidal rule is a numerical method that approximates the value of a definite integral by using first degree polynomial

#MATH-6330
Awesome StudentQuestion • Numerical Methods

When the exact value is π = 3.14159265359 and the relative error is given as 0.001, the approximate value is ____________.

#MATH-6330
Awesome StudentQuestion • Numerical Methods

It is possible to approximate a function by using values outside the data points which is known as the linear interpolation

#MATH-6330
Awesome StudentQuestion • Numerical Methods

In general, an n × n matrix will have a characteristic polynomial of degree of n+ 1, and its roots are the eigenvalues of A.

#MATH-6330
Awesome StudentQuestion • Numerical Methods

Matrix multiplication may proceed if the number of columns of the 1st matrix is equal to the number of rows of the 2nd one.

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