daviddoji/CalculusWithJuliaNotes.jl
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Merge pull request #61 from fangliu-tju/main

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Update ploting.qmd
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john verzani 2023-04-08 08:31:19 -04:00 committed by GitHub
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quarto/precalc/plotting.qmd
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@ -227,7 +227,7 @@ pts_needed(f, xmin, xmax) = length(unzip(f, xmin, xmax)[1])
pts_needed(x -> 10x, 0, 10), pts_needed(x -> sin(10x), 0, 10)
```
(In fact, the `21` is the minimum number of points used for any function; a linear function only needs two.)
(In fact, the `31` is the minimum number of points used for any function; a linear function only needs two.)
---
@ -470,7 +470,7 @@ The `Plots` package provides many arguments for adjusting a graphic, here we men
* `plot(..., title="main title", xlab="x axis label", ylab="y axis label")`: add title and label information to a graphic
* `plot(..., color="green")`: this argument can be used to adjust the color of the drawn figure (color can be a string,`"green"`, or a symbol, `:green`, among other specifications)
* `plot(..., linewidth=5)`: this argument can be used to adjust the width of drawn lines
* `plot(..., xlims=(a,b), ylims=(c,d)`: either or both `xlims` and `ylims` can be used to control the viewing window
* `plot(..., xlims=(a,b), ylims=(c,d))`: either or both `xlims` and `ylims` can be used to control the viewing window
* `plot(..., linestyle=:dash)`: will change the line style of the plotted lines to dashed lines. Also `:dot`, ...
* `plot(..., aspect_ratio=:equal)`: will keep $x$ and $y$ axis on same scale so that squares look square.
* `plot(..., legend=false)`: by default, different layers will be indicated with a legend, this will turn off this feature
@ -646,7 +646,7 @@ g(x) = x - sin(x)
plot(f, g, -pi/2, pi/2)
```
This graph is *nearly* a straight line. At the point $(0,0)=(g(0), g(0))$, we see that both functions are behaving in a similar manner, though the slope is not $1$, so they do not increase at exactly the same rate.
This graph is *nearly* a straight line. At the point $(0,0)=(f(0), g(0))$, we see that both functions are behaving in a similar manner, though the slope is not $1$, so they do not increase at exactly the same rate.
##### Example: Etch A Sketch
@ -920,7 +920,7 @@ Make this plot for the following specific values of the parameters `R`, `r`, and
```{julia}
#| hold: true
#| eval: false
R, r, rho = 1, 3/4, 1/4
R, r, rho = 1, 1/4, 1/4
```
```{julia}