# Electronics Engineering

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Solution Library **

#### MATLAB Script to Integrate a Function in Three Different Ways

Question Write a script to integrate a function in three different ways: by eyeballing it, by calling trapz with a list of points, and by calling quad with a function. Equation we’re going to integrate: y(x) = -x4 + 2x2 + 2. Summary This question belongs to MATLAB software and discusses ab ... Read More

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#### MATLAB Script to Try Fitting a 1st, 2nd, and 3rd Degree Polynomials

Question The following data represents the volume of ice needed to adequately chill a given volume of hot water. (The data can be found in HotWater.txt and Ice.txt on Blackboard – use dlmread to read the two vectors in.) Volume of hot water (cups) 0.62 0.84 1.41 ... Read More

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#### Find Area of a Tea Spill Using Numerical Integration in MATLAB

Question The surface area of a tea spill is estimated by measuring the width (in cm) of the spill at equally spaced intervals of 1.5 cm (width data is found in TeaSpill.txt). Use numerical integration to estimate the area of the tea spill. &n ... Read More

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#### MATLAB Function to Find Roots of a Polynomial Using Newtonâ€™s Algorithm

Question Newton’s method is a simple algorithm for approximating the roots of an equation. This algorithm works by taking the derivative (slope) of a function at a point along that function, finding where that slope intersects the x-axis, and then repeating for this new point. Repeating this ... Read More

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#### MATLAB Function that Best Fit by Plotting the data

Question A noise that grows louder over time is measured six times, and the following dataset is created (data in NoiseTime.txt and NoiseLoud.txt): Time (s) 1 1.3 … 5.6 6 Loudness (dB) 1.3 2.7 … 86 104 ... Read More

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#### Find Length of a Bridge by Integral Using MATLAB

Question The length L of the main supporting cable of a suspension bridge can be calculated by: where a is half the length of the bridge, and h is the distance from the deck to th ... Read More

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#### Solve Matrices and Find volume of Cubes Using MATLAB

Question a. Create an array of 12 logarithmically spaced lengths from 25 meters to 750,000 meters. b. Use matrix math to find the volume of 12 cubes with the side lengths from part a. c. Create an array of 17 angles linearly spaced from 30 degrees to 240 degrees. d. Use matrix math to find the t ... Read More

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#### Solve Given Set of Elements for A Variable Using MATLAB

Question Solve the following using MATLAB a. Make a variable ts that has 30 elements and goes from 0 to 2 pi b. Print out the 3rd element of ts c. Print out the number of elements in ts Summary This question belongs to MATLAB software and discusses about application of MATLAB in mathem ... Read More

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#### Determine the Heart Rate of an ECG Recording of Unknown properties Using MATLAB

Question Design and implement a MATLAB program to determine the heart rate of an ECG recording of unknown properties. Background Today, thousands of lives will be saved thanks to a machine’s ability to monitor heart activity of critically-ill patients in hospitals around the world. ... Read More

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#### Find Maximum and Minimum values of Given Elements Using MATLAB

Question For the following, write the commands in a script file leaving the semi-colon off so the answers print in the command window. Turn in the script and output. Output should include: a. number of elements in ts1 b. number of elements in ts2 c. first element in ts1 d. first element in ts2 ... Read More

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#### Find Maximum and Minimum values of Given Elements Using MATLAB

Question Write the following commands in the same script file. Leave off the semicolons so all answers print to the command window. Every bulleted instruction should produce some output. Turn in the script and all output. For the following, you will be getting values out of ts1 and putting them in ... Read More

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#### Find Out Values of Variables Using MATLAB

Question Given two variables A and B, swap their values. You should not assume that you know what the values in A and B are, or even that they’re scalar values. Hint: You will need a 3rd, temporary variable Test your script with A = [4 5 2] and B = [6 1 7 9] Print out the values of A and ... Read More

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