Sorry I didn't notice it. I believed I had delete all contents of
previous message.
Le 05/02/2017 à 10:28, Dima Pasechnik a écrit :
This is merely to point out that this message has little to do with
the original thread.
And its subject is hidden from the reader, unless you click on the
topic about OpenBlas
and see this:...
Please make sure to post such things separately, not inside an
irrelevant thread...
On Sunday, February 5, 2017 at 12:27:51 AM UTC, HG wrote:
Hi,
I can't find where are the mistakes ?
It says it's about floating ... It representes two waves
Any help ?
Best
Henri
var("ct omega t")
y = function("y")(t)
de = y + r*ct*diff(y,t) == sin(omega * t)
des = desolve(de,[y,t]);des
des2 = (des.substitute(ct == 0.1)).full_simplify()
df(r,ct,omega,t) = des2
r = 1000
c = 0.5e-6
f = 440
omega = 2*pi*f
pa =
plot(sin(omega*t),(t,0,.005),rgbcolor=('#800000'),axes_labels=['time','v'])
pb = plot(df(r,c,omega,t),(t,0,.005),rgbcolor=('#008000'))
lbl = text("$f = %.0f Hz \,r = %.0f \Omega \, c = %.1f {\mu}f$"
% (f,r,c*1e6),(.0025,1.2),fontsize=12,rgbcolor='black')
show(pa+pb+lbl,figsize=(4,3))
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