A numerical algorithm approximates the value of sin(0.5) as 0.465. Note that is 0.5 radians. The true relative error (to 4 decimal places) in this approximation is
Sin(0.5 radians) = sin(28.6478898∘)≈0.479425539
Relative error is given as:
(measured value - true value) / (true value)
= (0.465 - 0.479425539) / 0.479425539 = -0.0301
A numerical algorithm approximates the value of sin(0.5) as 0.465. Note that is 0.5 radians. The...
the question is from my Numerical methods and analysis course et /()-sin(), where is measured in radians. (a). Calculate approximations to ) using Theorem 6.1 with h-0.1, h-0.01 and h-0.001, Carry eight or nine decimal places. (b). Compare with the value /(0.8)-cos(08), i.e. calculating the error of approximation. s(0.8) Theorem 6.1 (Centered Formula of Order 0(h)). Assume that fe Cla, bl and that x -h. x, x + h e la, bl. Then The notation S) stands for the set...
use radians in trig functions Estimate the slope f (3.5) for f(x)-sin(3xusing: a. Forward difference approximation with h 0.2 b. Backward difference approximation with h 0.2 c. Centered difference approximation with h 0.2. For each estimated slope, provide the true percent relative error, & Which approximation is the most accurate? Box your answ ers
An oscillating current in an electric circuit is described by I=9e^-t sin(2pi*t). Determine all values of t such that I=3.5 From problem 6.18 in the book: Solve for the root using the bisection method, initial values x, = 0.35 and x, 0.45 and a stopping criterion &=0.5%. Start by rearranging the equation to set it up for root finding if I=3.5. Report your answers to 3 decimal places. Note: use radians for the sine component. iter xl eal (%) xu...
For what value is the error of approximating sin ( θ ) by θ (in radians) closest to 5%? 3.0 degrees 5.0 degrees 34 degrees 70 degrees
Multiple choice - numerical methods Multiple-Choice Test Measuring Errors I. True error is defined as a) Present Approximation Previous ) True Value- Approximate Value oabs (True Value- Approximate Value) D) abs (Present Approximation-Previous 2 The expression for true error in calculating the derivative of-er) at … 4 by using the approximate expression EA の 间 The relative approximate error at the end of an iteration to find the root of an equation is ome· The least number of significant digits...
2. (25 pts) Numerical differentiation. Numerical implementation. a. Compute the forward, central, and backward numerical first derivative using, 2, 3, and 4 points for the function y = cos x at x = 7/4 using step size h = /12. Provide the results in the hard copy. Note that the central differences can only be apply for odd number of points ). b. Provide the analytic form of the derivatives, as well as table of the computed relative error for...
Use a numerical solver and Euler's method to obtain a four-decimal approximation of the indicated value. First use h = 0.1 and then use h = 0.05. y' = y − y2, y(0) = 0.3; y(0.5) 4. 0/1 points Previous Answers ZillDiffEQ ModAp 11M 2.6.010. My Notes Ask Your Teacher Use a numerical solver and Euler's method to obtain a four-decimal approximation of the indicated value. First use h = 0.1 and then use h = 0.05. y' = y -...
Compute forward and backward difference approxi- aion 21.1 ns of O(h) and Oh), and central difference approxi- mations of 0(h2) and O(h) for the first derivative of y sin x at π/ 12. Estimate the true percent 4 using a value of x=π/ relative error ε, for each approximation. Compute forward and backward difference approxi- aion 21.1 ns of O(h) and Oh), and central difference approxi- mations of 0(h2) and O(h) for the first derivative of y sin x at...
A systems analyst tests a new algorithm designed to work faster than the currently-used algorithm. Each algorithm is applied to a group of 48 sample problems. The new algorithm completes the sample problems with a mean time of 19.90 hours. The current algorithm completes the sample problems with a mean time of 21.33 hours. The standard deviation is found to be 4.320 hours for the new algorithm, and 5.402 hours for the current algorithm. Conduct a hypothesis test at the...
A systems analyst tests a new algorithm designed to work faster than the currently-used algorithm. Each algorithm is applied to a group of 48 sample problems. The new algorithm completes the sample problems with a mean time of 19.90 hours. The current algorithm completes the sample problems with a mean time of 21.33 hours. The standard deviation is found to be 4.320 hours for the new algorithm, and 5.402 hours for the current algorithm. Conduct a hypothesis test at the...