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mathematics
applied numerical methods
Questions and Answers of
Applied Numerical Methods
An important problem in structural engineering is that of finding the forces in a statically determinate truss (Fig. P8.10). This type of structure can be described as a system of coupled linear
Consider the following function:f(x) = 2x + 3 / xPerform 10 iterations of parabolic interpolation to locate the minimum. Comment on the convergence of your results (x1 = 0.1, x2 = 0.5, x3 = 5)
Perform the same computation as in Example 8.2, but use five jumpers with the following characteristics:Example 8.2 Jumper 12345 2 5 Mass (kg) 65 75 60 75
Solve the following system with MATLAB: 2+i 09-(²³) Z2 3 3+2i 4 Z1 -i
A object with a mass of 90 kg is projected upward from the surface of the earth at a velocity of 60 m/s. If the object is subject to linear drag (c = 15 kg/s), use the goldensection search to
Use the fminsearch function to determine the minimum off(x, y) = 2y2 − 2.25xy − 1.75y + 1.5x2
Determine the number of total flops as a function of the number of equations n for the tridiagonal algorithm (Fig. 9.6). function x = Tridiag (e, f, g, r) Tridiag: Tridiagonal equation solver banded
Use the f min search function to determine the maximum off(x, y) = 4x + 2y + x2 − 2x4 + 2xy − 3y2
Develop an M-file function based on Fig. 9.5 to implement Gauss elimination with partial pivoting. Modify the function so that it computes and returns the determinant (with the correct sign), and
Use the graphical method to solve2x1 − 6x2 = −18−x1 + 8x2 = 40Check your results by substituting them back into the equations.
Given the system of equations0.77x1 + x2 = 14.251.2x1 + 1.7x2 = 20(a) Solve graphically and check your results by substituting them back into the equations.(b) On the basis of the graphical
Given the equations10x1 + 2x2 − x3 = 27− 3x1 − 5x2 + 2x3 = −61.5x1 + x2 + 6x3 = −21.5(a) Solve by naive Gauss elimination. Show all steps of the computation.(b) Substitute your results
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