Hi Gene,
I have one done for an algebra class that I am working on. The problem, which
I have the code available, is published and is algebra-02-01-09.
It defines all parameters in the script part and plots the piecewise defined
functions (several) in the problem part below using gnu plot.
This course is in the domain Pitt for user athanas.
Angela Athanas
________________________________
From: LON-CAPA-users <[email protected]> on behalf of
Justin Gray <[email protected]>
Sent: Saturday, March 21, 2020 3:33 PM
To: Discussion list for LON-CAPA users <[email protected]>
Subject: Re: [LON-CAPA-users] Piecewise Linear Functions
Hi Gene,
To answer your first question, here is a sample piecewise-defined function in
Gnuplots:
<gnuplot width="400" solid="0" plotcolor="monochrome" gridlayer="off"
bmargin="default" font="9" alttag="dynamically generated plot"
bgcolor="xffffff" texfont="22" transparent="off" plottype="Cartesian"
rmargin="default" gridtype="Cartesian" minor_ticscale="0.5"
fontface="sans-serif" grid="on" align="middle" texwidth="93" height="300"
border="on" samples="1000" fgcolor="x000000" major_ticscale="1"
tmargin="default" lmargin="default" fillstyle="empty">
<axis yzero="off" xformat="on" xmin="-10.0" yformat="on" color="x000000"
ymax="10.0" ymin="-10.0" xmax="10.0" xzero="off" />
<curve
linestyle="lines"
color="x000000"
pointtype="1"
linetype="solid"
linewidth="1"
name=""
limit="closed"
pointsize="1" >
<function>x < 0 ? -x : x**2</function>
</curve>
</gnuplot>
Best,
Justin
--
Justin Gray
Senior Lecturer | Department of Mathematics
Simon Fraser University | SCK 10531
8888 University Dr., Burnaby, B.C. V5A 1S6
Canada
T: 778.782.4237
Simon Fraser University is located on the Unceded Coast Salish Territories of
the xʷməθkʷəy̓əm (Musqueam), Səl̓ílwətaʔ/Selilwitulh (Tsleil-Waututh),
Kwikwitlem, and Skwxwú7mesh Úxwumixw (Squamish) Peoples
On Sat, Mar 21, 2020 at 11:36 AM Harding, Gene L
<[email protected]<mailto:[email protected]>> wrote:
Hi,
Does anyone know how to define a piecewise linear function in LON-CAPA, and
plot it with gnuplot? And, a related question: How do you put plots next to
each other?
I need to display a plot of voltage on one graph, with a plot of
phase-angle-fired half-sine current right below it on a separate graph, but
using the same horizontal axis values and scale. The multiplot command in
gnuplot allows multiple plots next to each other, similar to MATLAB, and the
ternary operator allows definition of piecewise linear functions, but I don’t
know how to implement either of them from within LON-CAPA.
Best regards,
Gene L. Harding, PE
Associate Professor of ECET
Purdue University
574-520-4190
https://polytechnic.purdue.edu/south-bend/<https://nam05.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpolytechnic.purdue.edu%2Fsouth-bend%2F&data=02%7C01%7Cathanas%40pitt.edu%7C27fb65cb49e844b9b72308d7cdcef951%7C9ef9f489e0a04eeb87cc3a526112fd0d%7C1%7C1%7C637204161150821773&sdata=q7VS5L%2Fc0OVj1G1DE4Ylk4Gdswcup%2BbbLie1okyqcMc%3D&reserved=0>
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