gibson:teaching:spring-2016:math445:lab3
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| **Problem 3:** Make a plot of $y(x) = 0.3 \log x + 2$ over the range $1 \leq x \leq 10^5$ using a dot-dashed cyan line. Chose an appropriate plotting function that best displays the functional relationship between $x$ and $y$. For this plot, it's best to create the ''x'' vector with ''logspace'' rather than ''linspace''; e.g. ''x = logspace(0,5,20)'' will set ''x'' to 20 points between $1 = 10^0$ and $10^5$ which are uniformly spaced on a logarithmic plot. Label the axes, set the $y$ range of the plot to $2 \leq y \leq 6$, and place a coordinate grid within the plot. Title the plot as in previous problems. | **Problem 3:** Make a plot of $y(x) = 0.3 \log x + 2$ over the range $1 \leq x \leq 10^5$ using a dot-dashed cyan line. Chose an appropriate plotting function that best displays the functional relationship between $x$ and $y$. For this plot, it's best to create the ''x'' vector with ''logspace'' rather than ''linspace''; e.g. ''x = logspace(0,5,20)'' will set ''x'' to 20 points between $1 = 10^0$ and $10^5$ which are uniformly spaced on a logarithmic plot. Label the axes, set the $y$ range of the plot to $2 \leq y \leq 6$, and place a coordinate grid within the plot. Title the plot as in previous problems. | ||
| - | **Problem 4:** Make a plot of $y(x) = 10 x^{-3}$ over the range $10 \leq x \leq 10^4$ using a solid green line. Chose an appropriate plotting function that best displays the functional relationship between $x$ and $y$. Use the ''logspace'' function for ''x'' as in problem 3. Label the axes, set the $x$ range of the plot to $0 \leq x \leq 10^5$, and place a coordinate grid within the plot. Title the plot as in previous problems. | + | **Problem 4:** Make a plot of $y(x) = 10 x^{-3}$ over the range $10 \leq x \leq 10^4$ using a solid green line. Chose an appropriate plotting function that best displays the functional relationship between $x$ and $y$. Use the ''logspace'' function for ''x'' as in problem 3. Label the axes, set the $x$ range of the plot to $10^0 \leq x \leq 10^5$, and place a coordinate grid within the plot. Title the plot as in previous problems. |
| **Instructions for problems 5,6,7:** For these problems you will deduce the functional relationship between variables in data sets using graphical analysis. The data sets are given as // N x 2// matrices with //x// as the first column and //y// as the second. For each data set, you will find a function //y(x)// that fits the data, using the following steps: | **Instructions for problems 5,6,7:** For these problems you will deduce the functional relationship between variables in data sets using graphical analysis. The data sets are given as // N x 2// matrices with //x// as the first column and //y// as the second. For each data set, you will find a function //y(x)// that fits the data, using the following steps: | ||
gibson/teaching/spring-2016/math445/lab3.1455207714.txt.gz · Last modified: 2016/02/11 08:21 by gibson
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