gibson:teaching:fall-2014:math445:hw2
====== Differences ====== This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision Next revision | Previous revision | ||
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gibson:teaching:fall-2014:math445:hw2 [2014/09/15 11:54] gibson |
gibson:teaching:fall-2014:math445:hw2 [2014/09/22 09:06] (current) gibson |
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| sum, any, all, linspace | sum, any, all, linspace | ||
| - | plot, semilogy, semilogx, xlabel, ylabel, legend, axis | + | plot, semilogy, semilogx, xlabel, ylabel, legend, axis, |
| + | hist, randn | ||
| **Problem 1:** Write a Matlab expression that sums the first N of each series and evaluate it for N=100. | **Problem 1:** Write a Matlab expression that sums the first N of each series and evaluate it for N=100. | ||
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| **Problem 6:** Plot sin(x) in red, cos(x) in green, over same x as problem 5. Use 'legend' to indicate which function is shown in which color. | **Problem 6:** Plot sin(x) in red, cos(x) in green, over same x as problem 5. Use 'legend' to indicate which function is shown in which color. | ||
| - | **Problem 7:** Plot $y = 5x^2 - 4x - 3$ for 100 evenly space points in x from -2 to 2. Superimpose an x,y grid on the plot. | + | **Problem 7:** Plot $y = 5x^2 - 4x - 3$ for 40 evenly space points in x from -2 to 2, using a red line and a circle on each data point. Superimpose an x,y grid on the plot. |
| **Problem 8:** Make a plot of the unit circle. Make sure it's closed --no gap! Hint: use ''linspace'' to specify a range of angles, then ''cos'' and ''sin'' to produce vectors of the x,y coordinates of points on the unit circle. | **Problem 8:** Make a plot of the unit circle. Make sure it's closed --no gap! Hint: use ''linspace'' to specify a range of angles, then ''cos'' and ''sin'' to produce vectors of the x,y coordinates of points on the unit circle. | ||
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| appropriate plotting function. Again, it ain't ''plot''! | appropriate plotting function. Again, it ain't ''plot''! | ||
| - | **Problem 11:** Make a histogram of 1000 random numbers from a normal (Gaussian) distribution. | + | **Problem 11:** Make a histogram of 1000 random numbers from a normal (Gaussian) distribution. Use Matlab's ''hist'' and ''randn'' functions. |
gibson/teaching/fall-2014/math445/hw2.1410807284.txt.gz · Last modified: 2014/09/15 11:54 by gibson
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