Difference between revisions of "EGR 103/Fall 2019/Minilab 3"
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| Line 12: | Line 12: | ||
:* [[Python:Interpolation]] | :* [[Python:Interpolation]] | ||
:* [[Python:Extrema]] | :* [[Python:Extrema]] | ||
| − | :* [https://docs.scipy.org/doc/scipy-0.18.1/reference/generated/scipy.interpolate.CubicSpline.html scipy.interpolate.CubicSpline¶] at [http://docs.scipy.org | + | :* [https://docs.scipy.org/doc/scipy-0.18.1/reference/generated/scipy.interpolate.CubicSpline.html scipy.interpolate.CubicSpline¶] at [http://docs.scipy.org docs.scipy.org] |
* Problem 2.5.2 | * Problem 2.5.2 | ||
| − | ** [https://docs.scipy.org/doc/scipy/reference/generated/scipy.integrate.simps.html scipy.integrate.simps] at [http://docs.scipy.org | + | ** [https://docs.scipy.org/doc/scipy/reference/generated/scipy.integrate.simps.html scipy.integrate.simps] at [http://docs.scipy.org docs.scipy.org] |
** Note that the denominator in the line of action calculation is $$f_t$$, which you already calculated. | ** Note that the denominator in the line of action calculation is $$f_t$$, which you already calculated. | ||
** If you want to see a graph of the cross section (i.e. Figure 19.9(b)), assuming you call the height above the bottom $$z$$ and the width at that height $$wz$$, you can add the following code: | ** If you want to see a graph of the cross section (i.e. Figure 19.9(b)), assuming you call the height above the bottom $$z$$ and the width at that height $$wz$$, you can add the following code: | ||
| Line 28: | Line 28: | ||
* Problem 2.5.3 | * Problem 2.5.3 | ||
| − | ** [https://docs.scipy.org/doc/scipy/reference/generated/scipy.integrate.trapz.html scipy.integrate.trapz] at [http://docs.scipy.org | + | ** [https://docs.scipy.org/doc/scipy/reference/generated/scipy.integrate.trapz.html scipy.integrate.trapz] at [http://docs.scipy.org docs.scipy.org] |
| − | ** [https://docs.scipy.org/doc/scipy/reference/generated/scipy.integrate.simps.html scipy.integrate.simps] at [http://docs.scipy.org | + | ** [https://docs.scipy.org/doc/scipy/reference/generated/scipy.integrate.simps.html scipy.integrate.simps] at [http://docs.scipy.org docs.scipy.org] |
** Since $$n$$ goes from 2 to 30, it is not '''exactly''' what you need for an index to an array...think carefully about how to store things. | ** Since $$n$$ goes from 2 to 30, it is not '''exactly''' what you need for an index to an array...think carefully about how to store things. | ||
Revision as of 02:29, 3 December 2019
- Problem 2.5.1
- To load data froman Excel file with headers:
import pandas # %% Load data edata = pandas.read_excel("file.xlsx") col_1_stuff = edata.values[:, 0].copy() col_2_stuff = edata.values[:, 1].copy()
- Problem 2.5.2
- scipy.integrate.simps at docs.scipy.org
- Note that the denominator in the line of action calculation is $$f_t$$, which you already calculated.
- If you want to see a graph of the cross section (i.e. Figure 19.9(b)), assuming you call the height above the bottom $$z$$ and the width at that height $$wz$$, you can add the following code:
fig = plt.figure(num=1, clear=True) ax = fig.add_subplot(1, 1, 1) zval = np.block([z[::-1], z[:]]) wval = np.block([-wz[::-1] / 2, wz[:] / 2]) ax.plot(wval, zval, "k-") ax.axis("equal")
- Problem 2.5.3
- scipy.integrate.trapz at docs.scipy.org
- scipy.integrate.simps at docs.scipy.org
- Since $$n$$ goes from 2 to 30, it is not exactly what you need for an index to an array...think carefully about how to store things.
- Problem 2.5.4
