Fplot Ezplot

1. Ezplot Plot
2. Fplot Vs Ezplot
3. Ezplot Vs Fplot
4. Fplot Ezplot
5. Plot Fplot Ezplot

• Ezplot (f) plots the expression f (x) over the default domain -2π.
• The problem is that ezplot is useful, but not that robust. A better option for plotting a function without discrete points is fplot. Check out the documentation for it. Here is an example of how to use it compared with ezplot.
• Ezplot (funx,funy, tmin,tmax) plots funx (t) and funy (t) over tmin (.,fig) plots into the figure window identified by fig. Use any of the input argument combinations in the previous syntaxes that include a domain. The domain options are xmin xmax, xymin xymax, xmin xmax ymin ymax, and tmin tmax.

Ezsurf chooses the computational grid according to the amount of variation that occurs. If f is singular for some points on the grid, then ezsurf omits these points. The value at these points is set to NaN.

Released:

Plot functions with simple syntax

Project description

A thin wrapper for matplotlib

Fplot’s goal is to provide simple syntax for plotting functions, with sensibledefaults. Matplotlib is powerful, but has awkward syntax, odd default display settings,and requires setting up data arrays manually. Making pretty function plots requiresmultiple lines of code. Fplot aims to fix this; it’s especially suited for visualizingfunctions when learning math.

Python 3 only.

Included functions

• plot: One input, one output.
• parametric: One input, two or three outputs. If three, use a 3d graph.
• contour: Two inputs, one output.
• surface: Two inputs, one output.
• vector: Two inputs, two outputs.
• vector3d: Three inputs, three outputs.
• polar: One input (angle), one output (radius)

Bonus functions

• plot2: Smoothed API for matplotlib 2d plotting that works properly in Jupyter notebooks. ie syntax like plt.plot, which doesn’t work properly in Jupyter. Arguments: (args, marker=’b-‘, linewidth: float=2.0, grid: bool=False, color: str=None, title: str=None, equal_aspect: bool=False, style: str=None, show: bool=True)
• imshow: Like plot2, but as a replacement for plt.imshow.

Basic documentation

Ezplot Plot

The only required arguments for fplot funcs are the function to plot, and themin and max ranges. Example optional keyword arguments are shown. Example outputis shown in the link above.

For most plotting functions, you can plot multiple functions at once by passinga list or tuple as the first argument.

Show a graph (1 input, 1 output)

Show a contour plot (2 inputs, 1 output)

Show a surface plot (2 inputs, 1 output)

Show a 2d parametric plot (1 input, 2 outputs)

Show a 3d parametric plot (1 input, 3 outputs)

Show a 2d vector plot (2 inputs, 2 outputs)

Show a 3d vector plot (3 inputs, 3 outputs)

Show a 2d polar plot (1 input, 1 output)

Example of an interactive plot with Ipython widgets in Jupyter notebook

• show: Defaults to True. Instantly display the plot. If False, return the axis object.
• resolution: Controls how many points to draw, based on function input. Higher resolutionallows more zooming, but may lower performance.
• color: (ie line color)
• linewidth: line width.
• y_min and y_max: (only for 2d input)
• theta_min and theta_max (only for polar plots)
• style: (ie from plt.use.style())
• grid: defaults to True
• equal_aspect: defaults to False
• title: Shown at the top of the plot
• stream: vector plot only; show a stream plot if True
• contours: surface plot only; show contour plots along each axis if True
• num_contours: contour plot only; set number of contour lines to draw. Defaults to 10.

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0.2.3

0.2.2

0.2.1

0.1.1

Fplot Vs Ezplot

0.1

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Description

ezplot(fun) plots the expression fun(x) over the default domain -2π < x < 2π, where fun(x) is an explicit function of only x.

Ezplot Vs Fplot

fun can be a function handle, a character vector, or a string.

ezplot(fun,[xmin,xmax]) plots fun(x) over the domain: xmin < x < xmax.

Fplot Ezplot

For an implicit function, fun2(x,y):

ezplot(fun2) plots fun2(x,y) = 0 over the default domain -2π < x < 2π, -2π < y < 2π.

ezplot(fun2,[xymin,xymax]) plots fun2(x,y) = 0 over xymin < x < xymax and xymin < y < xymax.

ezplot(fun2,[xmin,xmax,ymin,ymax]) plots fun2(x,y) = 0 over xmin < x < xmax and ymin < y < ymax.

ezplot(funx,funy) plots the parametrically defined planar curve funx(t) and funy(t) over the default domain 0 < t < 2π.

Plot Fplot Ezplot

ezplot(funx,funy,[tmin,tmax]) plots funx(t) and funy(t) over tmin < t < tmax.

ezplot(...,fig) plots into the figure window identified by fig. Use any of the input argument combinations in the previous syntaxes that include a domain. The domain options are [xmin xmax], [xymin xymax], [xmin xmax ymin ymax], and [tmin tmax].

ezplot(ax,...) plots into the axes ax instead of the current axes (gca).

h = ezplot(...) returns either a chart line or contour object.