Parametric Equations

Parametric Equations
Line Integral Video: What is a Line Integral ? • What is a Line Integral ?

[@thedoublehelix5661]

Parametric equations are also useful when you want to turn an implicit curve into a function.

[@MrCigarro50]

Hay una parte en este video, que puede ser útil en Regresión Lineal...voy a investigarlo. Gracias, su video es inspirador de áreas de investigación en otras disciplinas.

[@drpeyam]

De nada, fue mi placer

[@jonasdaverio9369]

Not only in life, but also in mathematics 😂😂

[@szczyrsyr6381]

Dr. Peyman please make video in polish. i am your big fan !!

[@richellewong9812]

u r so happy and great thanks m8 big up to this one

[@camperbbq3026]

Thanks for the videos you help me out a lot but can you please explain why t=1 at the end of the line in the second example because I thought that should be the distance of the line

[@GurukulbyADsr]

Nice Sir 👍

[@IoT_]

2:50 why did you mention that a circle is one-dimensional object?

[@drpeyam]

Why not?

[@IoT_]

@@drpeyam As far as I know ,a circle is a 2D object.

[@drpeyam]

It’s a 1D object living in a 2D space. A disk is 2 dimensional

[@IoT_]

@@drpeyam Sorry ,I was mistaken . I confused space inclosed in a circle and a circle itself

[@carlosmarques1029]

You should say “parametrize the graph of a function”, not “parametrize a function”

[@pacopelaez3779]

Where is blackoenredpen

[@georgesanxionnat5054]

Parametrise hyperbolas, ellipse and a flowers plzz!

[@salvaionicle]

hi, Dr Peyam i just passed all my calculus courses but i still have some problems with Parametric Equations in 3 dimentions. Can you make some videos about that?

[@Andrew-ri5vs]

The timing is pretty funny for me as I just started learning parametrization in bc calc last friday

[@divyanshaggarwal6243]

hey dr peyam to parmetrize the line can't we just find the actual equation of the line and then put x=t and y=f(t) like in the example where line goes from (1,2) to (3,4) the actual equation is y=x+1 so we can take the coordinates of any random pt. on the line as (t, t+1)

[@wyrmhero4275]

Yes, that would work

[@StreuB1]

@@wyrmhero4275 Actually no, that would give the line through the points. Not the line segment between the points. The only way to express a line segment is with a vector and an initial point which leads to the parameterization of the line segment.

[@divyanshaggarwal6243]

@@StreuB1 i further checked the answer in the video the equations are x=2t+1 y=2t+2 which are of the form x= k y=k+1, her k=2t+1

[@nanigopalsaha2408]

Also, great video. I have not looked at parametrization for a long time, so this is nice!

[@jarikosonen4079]

What if using u-substitution (u = t-1) for the parabola equation to get starting point to u=0? (Also might work for the line case)..

[@nanigopalsaha2408]

First

[@plaustrarius]

x = (1 - t^2) / (1 + t^2) y = (2t) / (1 + t^2) for t in the rationals. favorite circle parameterization! You've done the cycloid right? and a sphere? en.wikipedia.org/wiki/Cissoid_of_Diocles en.wikipedia.org/wiki/Tractrix Those are pretty fun. Thank you Dr. Peyam!

[@drpeyam]

Love those ones!

[@garyhuntress6871]

Very helpful to me as I continue reviewing math topics for machine learning

[@rodrigo_p2821]

Thank you !!

[@epicmorphism2240]

What would happen if you would integrare a contour clockwise? Why is it important to integrate anti-clockwise?

[@vivekbooshan9954]

Counter clockwise and anti clockwise are the same, but I'm assuming you meant clockwise. We go CCW because that is the direction the function moves through. We follow dtheta around the unit circle, which is inherently CCW.

[@dgtepper]

Enthusiasm

[@alvaroperezrivera5069]

parametrize´ em all

[@alessandrorenna1222]

I think the last one is a bit pointless, because is a 1 to 1 definition

[@rafaellisboa8493]

this is legit awesome, but I have a question, can you parametrize a 3d function? for example if you had a sphere of radius 1 in the first octave of R3 (x^2+y^2+z^2=1) could you parametrize x, y and z to make them all a function of t? my guess is no but please surprise me

[@drpeyam]

Yep, but with 2 variables u and v; it’s called a parametric surface

[@putin_navsegda6487]

wow Thank you for this playlist!

[@rafaellisboa8493]

mano desculpa o linguajar mas tu e muito foda

[@tomatrix7525]

Always good to review the basics sometimes. Great video. Viele Grüße aus Deutschland!!

[@drpeyam]

Danke :)

[@adityaujjwalmain5943]

Exactly what I needed!

[@ezras7997]

There’s no link the the desc

[@drpeyam]

Link to what? I forgot what I was mentioning

[@ezras7997]

Dr Peyam you’d said at the start that there’s a link to a future video, but I think it could’ve been that that video maybe was already posted and I watched them in reverse. Nvm, mb

[@drpeyam]

Probably this one: What is a Line Integral ? kzbin.info/www/bejne/mZCqqaaefNmCgqc