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loglogplot

  

doubly logarithmic plot of functions

 

Calling Sequence

Parameters

Description

Examples

Calling Sequence

loglogplot(f, h, v, options)

Parameters

f

-

function(s) to be plotted

h

-

horizontal range

v

-

(optional) vertical range

options

-

(optional) options as described in plot/options

Description

• 

The loglogplot command creates a 2-D plot where the vertical and horizontal axes have logarithmic scales.  A typical call to the loglogplot command is loglogplot(f(x), x=a..b), where f is a real function in x and a..b specifies the horizontal real range on which f is plotted.

• 

The loglogplot command provides support for 2-D log-log plots of one or more functions specified as expressions, procedures, parametric functions or lists of points.  For more information about the different input forms, see plot/function.

• 

The horizontal and vertical range arguments h and v define the axes labels and the ranges over which the function is displayed. They take one of the following forms:  string, low..hi, or string=low..hi, where low and hi are real constants.  For more information, see plot/range.

• 

Remaining arguments are interpreted as options which are specified as equations of the form option = value. These options are the same as for those used for the plot command. For more information, see plot/option.

• 

An alternative method for creating a 2-D plot where the axes have logarithmic scales is to use the plot command with the axis option.

Examples

withplots:

loglogplot10x,x=1..10

loglogplotcosx+sinx,x=1..π

Reproduce the above plots using the operator form of input.

loglogplotx→10x,1..10

loglogplotcos+sin,1..π

Create log-log plots with multiple curves.

loglogplotx→2sinx,x→2cosx,1..10

loglogplottanx,2x,x=1..10

Plot a parametric curve.

loglogplotcos,sin,π..π

Plot a list of points.

loglogplot1,2,3,4,5,6,7,8

Display logarithmic gridlines along the axes.

loglogplot1x+x10,x=0.1..10,gridlines

See Also

plot

plot/axis

plot/function

plot/option

plot/range

plots[logplot]

plots[semilogplot]

 


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