Sketching the quadric surface (KristaKingMath)
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- Опубліковано 25 тра 2014
- ► My Vectors course: www.kristakingmath.com/vector...
Learn how to sketch a quadric surface and its traces.
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If you could use some extra help with your math class, then check out Krista’s website // www.kristakingmath.com
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Hi, I’m Krista! I make math courses to keep you from banging your head against the wall. ;)
Math class was always so frustrating for me. I’d go to a class, spend hours on homework, and three days later have an “Ah-ha!” moment about how the problems worked that could have slashed my homework time in half. I’d think, “WHY didn’t my teacher just tell me this in the first place?!”
So I started tutoring to keep other people out of the same aggravating, time-sucking cycle. Since then, I’ve recorded tons of videos and written out cheat-sheet style notes and formula sheets to help every math student-from basic middle school classes to advanced college calculus-figure out what’s going on, understand the important concepts, and pass their classes, once and for all. Interested in getting help? Learn more here: www.kristakingmath.com
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i feel as though you're very underrated, You and The Organic Chemistry Tutor. You both help Millions of people easily, and deserve far more credit. Excellent videos thank you for what You do.
You have a very relaxing voice, it makes the video easy to listen to.
thanks!
still don't understand this shit
SIMP
Very very well done. I cannot exactly put into words how well you explained this, but it clicked instantly for me.
Very helpful with a smooth voiced delivery. I think I just found my new math tutor. Thanks
Very beautiful and very clear illustration. Amazing. Now I have understood this stunning 3D geometry.
to tegasgtya gone hasano asoy wa
The way I think about the second one is as follows:
To start, I obviously look at the equation, and I see it has two variables. At first, I think about this in a two-dimensional space, in this case the yz-plane (I know we are graphing in 3 dimensions, but I'll get to that later). So I graph the equation there and see that it is a downward-facing parabola. Now, because we are graphing in 3-space and because I don't see an "x" in the equation, I think of it as "x" can be anything because no matter what "x" is, the equation essentially never shows any change except a shift along the x-axis. To me, this represents the "main" (I just call it that) parabola shape in the yz-plane extending along the x-axis to create the resulting figure that was drawn in the video.
What a great explanation and most importantly understandable!!!
Thanks Krista.
You're welcome, Alexandru, I'm so glad it made sense! :)
THANK YOU!
Your video helped me loads. I missed a class and the book didn't help at all. Your explanations are very easy to understand.
Thank you for doing what you're doing!! You're awesome! :D
You're welcome! I'm so glad this helped!! :D
Your videos never fail. You are very smart. Thank you.
So nice of you, Tim, thanks!! :)
Hi Krista! May you please share the link with the "types of surfaces" chart at 0:24?
Very helpful, thanks!
you are simply great!!!! thanks for explaining in a easy way!
Thanks Pamela, I'm so glad it helped! :D
great video and awesome explanation. keep up the great work!
chillbabe104 thanks!!
Thank you a lecture that is in unbroken english. Thank you. So much.
Really informative❤
where can I find the pdf with all the 3D geometric surfaces that you used in the beginning of the video? Thanks for another helpful video!
I understand better now! Thanks for your video
Appreciate it
I'm so glad!! :D
you are amazing!!!!!
this was mind blowing knowledge
I'll be honest these videos save my life in cal. They are easy to understand and it makes sense without giving unnecessary information. This is way better than khan academy and you have earned my subscription. Thanks for all the help.
Thanks for subscribing Louis! I'm glad the videos are helping. :)
I fell in love with your voice.
Thank you!
Have you this page (from 0:31) online ? Could you post the link?
Please also make a video on how to draw a sin or cosine graph in 3 space when one variable is missing
Your videos are all amazing. Very concise and straight to the point. Also not hard to understand. Do you have that chart available by any chance?
I'm so glad the videos have been helpful! If you send me a private UA-cam message with your email address, I can send you the chart from the video.
Thank you 🙏
krista you saved me two hours of lecture work
Nice :) Thank you. Those are helpful.
Great!! :D
FIrstly, thanks for explaining this,
Secondly, please what material did you share the surface pictures from or is part of your lesson note
Thank you! :)
is there a pdf of that sheet on from the very begining?
Great vid!
Jordan Perez Thank you so much!
that was great. thanks.
You're welcome! :)
Where might i find a printable copy of the chart you use in this video?
+Michael Simonsen +Lujain Alobaide I have a copy within CalculusExpert.com. But you're more than welcome to pause the video and just take a screenshot of the chart as well.
You get a pen and paper and copy it
Why graph does not intersect axis if its not in equation?
Where did you find that Quadric Surface chart at?? Very helpful video, thanks!!
It's my own chart that I made, Aaron. I'm so glad the video helped! :)
Hello Ma'am! what kind of figure is the last one?
love you im at best varsity in africa now and 90% in math nw bcz of u!!
yeah im a first year with an advanced calculus course but i have You!!!TheQueenofMath😂😂😂thanks for the intro to math life the first of your vids I watched was on intergrals😄
Where about u studying bro
YOU ARE AWESOME ;")
You too! :D
How is the maximum value for z 1? if you plug in 1 for y^2 you get 1-1=0
0 is smaller than 1 ya dummy
U r such an angel in math world 😍
Once again very useful
:D
My pleasure
hey Krista where did you get that surface chart
Hi Joseph, I made it myself! :)
can you post the chart?
Awesome
Excellent video. :)
Can you please also share a link to that chart you showed in the beginning of the video? That'd be really helpful. Thanks a tonne. :D
Thanks! Unfortunately the chart is only in my Academy, I don't have a link to it. Sorry about that! :/
I have a solution. Print screen and paste it into paint. Or pause the video and use snipping tool.
integralCALC Its okay. Thank you for the video. :)
timmy scott Good idea. Thanks. :)
Very well
What if a cylinder revolved a different line like z=x
Mam please solutions the calculus fifth edition 14.7 14.6 so three days are remaining for my exam. Please mam.
you're superstar!!
awww thank you!
sketch graph of x2+y2+y2+xy+yz=0 ??????
This was handy
ATTN: "Money Laundery - kidnapper op - on the loose!"
the queen voice
Better to learn this without referring to a chart, at least at first
nice
I noticed that some comments are really old , how old are you now if you don't mind me asking ?
Edit: btw what's the purpose of traces , I'm not sure if it's a stupid question , I'm still early into this work and I started before the class so it's a bit difficult understanding concepts from just books
u r my hero
really excellent video and your voice very cute :D
So true
Hey, just a passing remark: Just because the equation doesn't include an x-term doesn't mean the surface will never touch the x axis. For example, z= y^2 always touched the x axis for every point whose y and z coordinates are both 0.
PRESCHOOL CALCULUS CLASS
Z=1+x2
I have a Cal 3 exam tomorrow. I understand everything except this.
Nvm, you’re the best. I’m getting it right now
speech fast........