Fplot Octave
Posted : admin On 4/14/2022

Octave can plot a function from a function handle or string defining the function without the user needing to explicitly create the data to be plotted. The function fplot also generates two-dimensional plots with linear axes using a function name and limits for the range of the x-coordinate instead of the x and y data.

> --- On Tue, 2013/7/16, martine1212 wrote:
>
>> According to the help menu...
>>
>> — Function File: print ()
>> — Function File: print (options)
>> — Function File: print (filename, options)
>> — Function File: print (h, filename, options)
>>
>> Using the last one in my program
>>
>> print(H1, 'dummy.pdf', -landscape);
>>
>> print (h1, 'dummy.pdf', -landscape)
>> ?? error?? landscape
>> error: `landscape' undefined near line 69 column 26
>> error: evaluating argument list element number 3
>>
>> ok try putting '-landscape'
>>
>> print (h1, 'dummy.pdf', '-landscape')
>> error: strtrim: S argument must be a string or cellstring
>> error: called from:
>> error: /usr/share/octave/3.6.3/m/strings/strtrim.m at line 71, column 5
>> error: /usr/share/octave/3.6.3/m/plot/private/__print_parse_opts__.m at
>> line 78, column 9
>> error: /usr/share/octave/3.6.3/m/plot/print.m at line 260, column 8
>>
>> ok, how does it work??
>>
>> This works (but it does not follow the published format)
>>
>> print -landscape dummy.pdf
>>
>> but how do I tell to print h1
>>
>
> The below worked for me (octave 3.6.4 MSVC)
>
> figure(2);
> fplot ('sin', [0, 2*pi]);
> print(2, 'dummy.pdf', '-landscape');
>
Parametric Plot Octave
- Fplot(,LineSpec) specifies the line style, marker symbol, and line color.For example, '-r' plots a red line. Use this option after any of the input argument combinations in the previous syntaxes.
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