A particle follows a path defined by functions u(x , y) and v(x , y) in a
Cartesian plane, so it's verified that:

u . cos v - x = 0
u . sin v - y = 0

Which are the expressions for, and what they represent (physically):

∂u/∂x and ∂v/∂x

On Friday, August 27, 2021 at 10:14:01 PM UTC-7, Richard Hertz wrote:
> A particle follows a path defined by functions u(x , y) and v(x , y) in a
> Cartesian plane, so it's verified that:
>
> u . cos v - x = 0
> u . sin v - y = 0
>
> Which are the expressions for, and what they represent (physically):
>
> ∂u/∂x and ∂v/∂x

Hint :

u=\sqrt{x^2+y^2}
v=arctan{\frac{y}{x}}

You must be getting really desperate coming up with this basic stuff. Take your anti-psychotic meds and go to bed.

On Saturday, August 28, 2021 at 3:05:19 AM UTC-3, Dono. wrote:
> On Friday, August 27, 2021 at 10:14:01 PM UTC-7, Richard Hertz wrote:
> > A particle follows a path defined by functions u(x , y) and v(x , y) in a
> > Cartesian plane, so it's verified that:
> >
> > u . cos v - x = 0
> > u . sin v - y = 0
> >
> > Which are the expressions for, and what they represent (physically):
> >
> > ∂u/∂x and ∂v/∂x
> Hint :
>
> u=\sqrt{x^2+y^2}
> v=arctan{\frac{y}{x}}
>
> You must be getting really desperate coming up with this basic stuff. Take your anti-psychotic meds and go to bed.

That are not the answers. Not even close. Try again, imbecile!. And no med can help you to get better from your insanity.

On Friday, August 27, 2021 at 11:17:20 PM UTC-7, Richard Hertz wrote:
> On Saturday, August 28, 2021 at 3:05:19 AM UTC-3, Dono. wrote:
> > On Friday, August 27, 2021 at 10:14:01 PM UTC-7, Richard Hertz wrote:
> > > A particle follows a path defined by functions u(x , y) and v(x , y) in a
> > > Cartesian plane, so it's verified that:
> > >
> > > u . cos v - x = 0
> > > u . sin v - y = 0
> > >
> > > Which are the expressions for, and what they represent (physically):
> > >
> > > ∂u/∂x and ∂v/∂x
> > Hint :
> >
> > u=\sqrt{x^2+y^2}
> > v=arctan{\frac{y}{x}}
> >
> > You must be getting really desperate coming up with this basic stuff. Take your anti-psychotic meds and go to bed.
> That are not the answers.

They are the hint sufficient to solve the problem. Eat some more shit.

On Saturday, August 28, 2021 at 12:22:06 PM UTC-3, Dono. wrote:

<snip>
> > > > Which are the expressions for, and what they represent (physically):
> > > >
> > > > ∂u/∂x and ∂v/∂x
> > > Hint :
> > >
> > > u=\sqrt{x^2+y^2}
> > > v=arctan{\frac{y}{x}}
> > >
> > > You must be getting really desperate coming up with this basic stuff. Take your anti-psychotic meds and go to bed.
> > That are not the answers.
> They are the hint sufficient to solve the problem. Eat some more shit.

You didn't solve the problem, cretin, which is to get and explain the meaning of ∂u/∂x and ∂v/∂x.

Retarded POS!

On Saturday, August 28, 2021 at 8:32:29 AM UTC-7, Richard Hertz wrote:
> On Saturday, August 28, 2021 at 12:22:06 PM UTC-3, Dono. wrote:
>
> <snip>
> > > > > Which are the expressions for, and what they represent (physically):
> > > > >
> > > > > ∂u/∂x and ∂v/∂x
> > > > Hint :
> > > >
> > > > u=\sqrt{x^2+y^2}
> > > > v=arctan{\frac{y}{x}}
> > > >
> > > > You must be getting really desperate coming up with this basic stuff. Take your anti-psychotic meds and go to bed.
> > > That are not the answers.
> > They are the hint sufficient to solve the problem. Eat some more shit.
> You didn't solve the problem,

You mean, you are incapable of calculating du/dx , dv/dx from the hint? LOL

On Saturday, August 28, 2021 at 8:32:29 AM UTC-7, Richard Hertz wrote:
> get and explain the meaning of ∂u/∂x and ∂v/∂x.

There is no meaning, crank. Keep eating shit.

On Saturday, August 28, 2021 at 12:38:32 PM UTC-3, Dono. wrote:

<snip>

> > get and explain the meaning of ∂u/∂x and ∂v/∂x.
> There is no meaning, crank. Keep eating shit.

Think on Kepler and eccentricity e going down to zero, imbecile.

And what is your fixation with "eating shit"? A constant concept in your posts since you started here
by April 2006. Did you tried it like a sick dog does and your mom punished you severely?

Visit to a Freudian shrink for help , cretin. Never is too late.

On Saturday, August 28, 2021 at 10:56:12 AM UTC-7, Richard Hertz wrote:
> On Saturday, August 28, 2021 at 12:38:32 PM UTC-3, Dono. wrote:
>
> <snip>
> > > get and explain the meaning of ∂u/∂x and ∂v/∂x.
> > There is no meaning, crank. Keep eating shit.
> Think on Kepler and eccentricity e going down to zero,

What you cribbed is nothing but a change of coordinates from Cartesian to polar.
du/dx has no dimensions. So, keep eating shit, crank.

On Saturday, August 28, 2021 at 3:14:05 PM UTC-3, Dono. wrote:

<snip>

> > > > get and explain the meaning of ∂u/∂x and ∂v/∂x.
> > > There is no meaning, crank. Keep eating shit.
> > Think on Kepler and eccentricity e going down to zero,

> What you cribbed is nothing but a change of coordinates from Cartesian to polar.
> du/dx has no dimensions. So, keep eating shit, crank.

Not for nothing you gained the fame of being an idiot, an ignorant, an asshole and as a mean person here:

https://groups.google.com/u/1/g/sci.math

Search for Dono or Dono. to see how you did there, until you abandoned the group keeping your beloved
Mathematica software, which you considered perfect, no matter what. Imbecile.

u(x,y) is an orbital path in a Cartesian plane, which follow Kepler's laws for e=0.

v(x,y) is the angle for that orbital path, as measured from (0,0).

The circular trajectory followed by a particle in the path u(x,y) can have partial derivatives with a physical meaning.

So, ∂u/∂x and ∂v/∂x represent something in physics, when hidden variables (no need to make them visible) produce
an impact on the interpretation of the partial derivatives.

But, obviously, this topic is beyond your capabilities for reasoning, as astronomy and cosmology were for Einstein,
so he committed the fraud of GR without not having the slightest understanding of such topics and hammering real
data so it fit his fucking GR and also fudged results with his fucking approximations, because he knew that 99.99999999%
of the non-linear equations had no analytical solutions. So, he was happy to develop such trap, impossible to be unproven
mathematically and you, as a faithful 5th. generation disciple, follows blindly.

An due to your dogmatic anti-newtonian formation, you're not able to see the truth even if it smashes you directly on
your fucking face. Go and have a rest, imbecile. Don't forget to recite your einstenian commandments before going to sleep.

On Saturday, August 28, 2021 at 11:42:23 AM UTC-7, Richard Hertz wrote:
> On Saturday, August 28, 2021 at 3:14:05 PM UTC-3, Dono. wrote:

> So, ∂u/∂x and ∂v/∂x represent something in physics,

No, they don't since they are adimensional. You are as stupid in terms of classical physics as you are in terms of relativity.

On Saturday, August 28, 2021 at 11:42:23 AM UTC-7, Richard Hertz wrote:

> But, obviously, this topic is beyond your capabilities for reasoning, as astronomy and cosmology were for Einstein,
> so he committed the fraud of GR without not having the slightest understanding of such topics and hammering real
> data so it fit his fucking GR and also fudged results with his fucking approximations, because he knew that 99.99999999%
> of the non-linear equations had no analytical solutions. So, he was happy to develop such trap, impossible to be unproven
> mathematically and you, as a faithful 5th. generation disciple, follows blindly.
>

I feel flattered that you compare me with Einstein, he will always be a genius while you are forever going to be a pathetic piece of shit.

On Saturday, 28 August 2021 at 22:14:05 UTC+2, Dono. wrote:
> On Saturday, August 28, 2021 at 11:42:23 AM UTC-7, Richard Hertz wrote:
>
> > But, obviously, this topic is beyond your capabilities for reasoning, as astronomy and cosmology were for Einstein,
> > so he committed the fraud of GR without not having the slightest understanding of such topics and hammering real
> > data so it fit his fucking GR and also fudged results with his fucking approximations, because he knew that 99.99999999%
> > of the non-linear equations had no analytical solutions. So, he was happy to develop such trap, impossible to be unproven
> > mathematically and you, as a faithful 5th. generation disciple, follows blindly.
> >
> I feel flattered that you compare me with Einstein, he will always be a genius while you are forever going to be a pathetic piece of shit.

In the meantime in the real world, however, the real
clocks of real GPS keep indicating t'=t, just like serious
clocks always did.