My name is Alex Niedden and I am a math teacher based out of the suburbs of Chicago.
I use this channel to post the lessons from my classes as both a resource for my own personal students and all others looking for a little help in math. I have lessons for Geometry, Algebra 2, Statistics, Calculus 3, and Differential Equations. The lessons are generally organized into playlists for each unit.
While I teach a variety of math classes, my passion and area of expertise is statistics.
Hi Ms./Mrs. Niedden! First of all thank you for your efforts your videos are great! But you made a mistake at 52:08 while writing the Binormal Vector, the "z" component should be -3/5, you got the answer right tho. Anyways have a great day!
Thank you so much. All of your videos have been an absolute game changer for me. Your clear explanations make even the toughest topics so much easier to understand. I honestly don’t know what I would have done this semester without your guidance. You’ve been a huge help, and I’m truly grateful for everything you share.
why on exmpale four did you say that you would not do an actual derivative for y and z instead of partial because they only have one path on a tree diagram
I had sytems of DE which is non-autonomous. Figured out the system from our production line. Tried solving it through matrix but I guess the solution has no close form.
Hi thank u for ur videos. For example 2 I was a little confused on how you chose to use 1-r^2 as the equation to integrate. Can u pls clarify how you got that? Thank you.
Hello! Recall that a double integral represents the volume underneath some function and above the xy-plane. Here our figure is bounded above by z = 1 - x^2 - y^2, so we want to integrate that function (thus finding the volume underneath it). Because of that circle R, it will be easier if we integrate in polar coordinates instead of rectangular. Converting to polar, z = 1 - x^2 - y^2 is the same as 1 - r^2 (recall that r^2 = x^2 + y^2). I hope this helps!
I have already! Please look at my newest playlists, which have each note sheet. For example, here is ch 15: ru-vid.com/group/PLGOk2-zeLtjC_ONpG6dEL21iWJjgXgqJu
Hi, I hope you'll be good, I had something to ask, I was wandering if would be possible for you to upload some videos about rotation matrix and teach about it, I'm studying about analytic mechanic which is in the physics course, so, I wanted to get some help from your channel, so if it was possible, I would appreciate it.
maam loved your lecture . you are the first one who gave the concept and told that forget about the type 1 and type 2 . it is much easier now when i solve it by your approach . thanks a lot.
THANK YOU SO MUCH!! My teacher doesn't teach at all, and as a sophomore in high school it's super hard to keep up. Your videos are LIFE CHANGING!!!!!!! :)
for the last example the limit as r --> 0 from the right is -infinite/ infinite ? becasue as ln goes to 0 y is going down forever ? so this confuses me because i didnt know lohopitals rule was applies this way
I don’t normally comment on YT videos but this is an exception. You’ve saved my Calc 3 grade. Thank you for your clear and easy to understand demonstration. This helped me so much!!! 👍🏼👍🏼👍🏼
You swapt the x and z plane...we can never get a negative z value in the equation but on your graph it shows we can...we can get a negative x value but it turns the value of z positive every time
to find the da I arrived at da=R.dr.do + dr.dr.do/2, for me it makes sense to be only the R.dr.do because the other dr is squared so it will be insignificant in the sum, but I couldn't demonstrate this mathematically, do you have any idea how to do it?
