heaviside step functions, or singularity functions and plotting them

heaviside step functions, or singularity functions and plotting them - Сообщения

#1 Опубликовано: 15.03.2012 10:29:37
pjlord28

pjlord28

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I am doing a beam loading problem and I want to make up my own smath file to do so. The beam calculator on this website is very good, and usefull and the plots are nice. I just am learning the program and want to program an example myself.


how do you use heaviside step functions or singularity functions?

i wrote out a quick "if" statement to get the heaviside function to kind of work.


also how do you plot a function? like Q(x) for example

#2 Опубликовано: 15.03.2012 10:42:00
Davide Carpi

Davide Carpi

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Hi

the heaviside function it's very easy to do:


http://www.mediafire.com/?tnbdj5e5bdt5swb


regards

w3b5urf3r
If you like my plugins please consider to support the program buying a license; for personal contributions to me: paypal.me/dcprojects
#3 Опубликовано: 15.03.2012 10:52:51
pjlord28

pjlord28

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Wrote

Hi

the heaviside function it's very easy to do:


http://www.mediafire.com/?tnbdj5e5bdt5swb


regards

w3b5urf3r




that is kind of what i have. i am trying to plot the equations on the bottom of this program


http://www.mediafire.com/?foyewp8d6n2wb7h
#4 Опубликовано: 15.03.2012 11:02:34
Oscar Campo

Oscar Campo

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Hi,
I work with SMath in beam problems and I use my own version of Singularity Functions.
It´s very simple:
[MATH]fsin(x;a;n)x-a)^n*(x>a)*(n≥0)[/MATH]

So, if you need a heavyside function, n=0. For a ramp function n=1, and so on.
In this file you can view a complete example for a 3 support loaded beam.

Regards,

Oscar Campo
2 пользователям понравился этот пост
Davide Carpi 15.03.2012 11:06:00, Andrey Ivashov 18.03.2012 09:21:00
#5 Опубликовано: 15.03.2012 11:05:05
Davide Carpi

Davide Carpi

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Wrote



that is kind of what i have. i am trying to plot the equations on the bottom of this program

http://www.mediafire.com/?foyewp8d6n2wb7h



there are some errors dues to units congruency

If you like my plugins please consider to support the program buying a license; for personal contributions to me: paypal.me/dcprojects
#6 Опубликовано: 15.03.2012 14:58:03
pjlord28

pjlord28

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Wrote

Wrote



that is kind of what i have. i am trying to plot the equations on the bottom of this program

http://www.mediafire.com/?foyewp8d6n2wb7h



there are some errors dues to units congruency




i cant figure this out. sorry i guess i am too new a of a user.
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