Stream

 
True
17
3
Wouter Tomme's profile photoElias Ps's profile photoMatseliso Shongwe's profile photoAdel Alsabeeha's profile photo
5 comments
 
+Wouter Tomme No, but a sum is not very difficult so this is not very funny 😂
Add a comment...
 
 
Hi everyone. Who would guess that Let it Be by The Beatles would have something to do with line charts? In today's post I show you the relationship using some R code, and also explain area charts with a very simple set of male/female ratios. Hope you like it!
Hello there! Do you recognize them? I'm sure you know them, one of the most famous pop bands in the history of music. You may be wondering why I put a picture of Paul, George and John in this blog about mathematics, and t...
1
Add a comment...
 
:D
19
6
Mark Luna's profile photoMark Sanchez's profile photoUğur Güray's profile photoRolf Klucker's profile photo
2 comments
 
Totally worth it, when you can take the grading hit.
Add a comment...

Pooja Kashyap

Math Questions  - 
 
There are many unsolved problems in mathematics. Some prominent outstanding unsolved problems (as well as some which are not necessarily so well known) include:
2
2
Amrita Ray's profile photoTim Griffith's profile photo
Add a comment...

Pooja Kashyap

Freq Posts/Tricks  - 
 
The tesseract is a four dimensional cube. It has 16 edge points v=(a,b,c,d), with a,b,c,d either equal to +1 or -1. Two points are connected, if their distance is 2. Given a projection P(x,y,z,w)=(x,y,z) from four dimensional space to three dimensional space, we can visualize the cube as an object in familar space. The effect of a linear transformation like a rotation
         |   1  0    0    0      | 
R(t) =   |   0  1    0    0      |
         |   0  0  cos(t) sin(t) |
         |   0  0 -sin(t) cos(t) |
in 4d space can be visualized in 3D by viewing the points v(t) = P R(t) v in R3.
9
3
Dimitrios Kalemis's profile photoRhonda Roberts's profile photoBhupendra Aole's profile photoZachariah Aslam's profile photo
5 comments
 
Its an Infinity Stone of unparalleled power.
Add a comment...
 
Please someone kill me!!! Hahaah
33
9
Julian Claus's profile photoManraj Dhaliwal's profile photoЮлий Тульман's profile photoJhon Edison Mesa Bedoya's profile photo
 
And for that, i got bad english and computering, so unbalanced.
Add a comment...

Brandon Konrad

Videos/Pictures  - 
 
You guys should check out this channel, he has a lot of useful videos covering various math topics.
11
2
Brandon Konrad's profile photoDA BLACKMAN'S's profile photoNur Johari Bin Salleh's profile photoJason Mitchell's profile photo
2 comments
 
I'm using his videos to try and understand calculus topics before I go into Calculus class.

My curiosity about Integral and Derivative can't wait a year. 
Add a comment...

Math

Videos/Pictures  - 
 
The arc-length parametrization of an Archimedean spiral visualized with colors.
It is really interesting how the colors are bent around. It seems that the distribution is quite non-uniform, even though the spiral is rather uniform in growth.

http://en.wikipedia.org/wiki/Differential_geometry_of_curves#Length_and_natural_parametrization

http://en.wikipedia.org/wiki/Archimedean_spiral

http://1ucasvb.tumblr.com/post/44972646489/the-arc-length-parametrization-of-an-archimedean
40
35
Jacob Wiles's profile photoMOOn Jello's profile photoLeo Faria's profile photoMARIA DE LOURDES LEANDRO's profile photo
2 comments
 
This reminds me of the example of "implicate order" that David Bohm often talks about - with ink blots in a viscous medium that is then twirled around, so they get spread out, but can be drawn back together by twirling the other way.
Add a comment...

Aiman Naqvi

Discussion  - 
 
Praise me b'coz i 'm getting an award "Star performer in Mathematics"......
Feeling proud n lucky!!!
5
Krishna Viswanath's profile photo
 
I have never heard of such award before, but anyway congratulations....
Add a comment...

Brain Teasers

Puzzles/Riddles  - 
 
Fill in the numbers in each empty box, so that sum of each 3 adjacent digits is always 15. Write solution as one multi-digit number.
5
1
BrainTeasers Mozgalice's profile photoMatthew Kaznowski's profile photoAdam Liss's profile photo
2 comments
 
5 645645 6 45
Add a comment...

About this community

Welcome to the Mathematics Community! Please read the community guidelines before posting: http://goo.gl/SjFp4. Here are the most import things you need to know: *Please check the Dr. Math FAQ if you've got a question that might be common. You might be posting about something that we've already seen numerous times. http://mathforum.org/dr.math/faq/ *Don't link-litter.* If you've found an interesting article that you think the Mathematics community needs to see, please share it! But we want to know why you think it's share-worthy. *No unrelated ads or spam.* *Don’t cheat on homework, classwork, or other exercises.* This community is not well-suited for homework help (see homework policy below), but it has zero tolerance for cheaters. Cheaters will be banned. *Categorize correctly.* *Keep posts relevant to mathematics in some way.* Wondering why your post was removed? Read the complete community guidelines.
24
2
Ana Magallanes's profile photoUri Palatnik's profile photo
Add a comment...

David Eaton

Select a category (spam trap)-->  - 
 
IM BACK ASS
1
Add a comment...

Sumbul Azeem

Discussion  - 
 
 
A hypotrochoid is a roulette traced by a point attached to a circle of radius r rolling around the inside of a fixed circle of radius R, where the point is a distance d from the center of the interior circle.

http://xahlee.info/SpecialPlaneCurves_dir/Hypotrochoid_dir/hypotrochoid.html
27
8
Narendran Sriramulu's profile photoElbaR IsRaILoV's profile photocazimir cip's profile photodeepak ragu's profile photo
3 comments
 
Nu ati pare ca se invarte invers fata de tot ce se invarte din centrul galaxiei?
 ·  Translate
Add a comment...

John Redden
moderator

Discussion  - 
 
A new free peer help website... I still like http://openstudy.com/  

Does anybody have experience with this one?
3
Cristina Yapura's profile photo
 
es mejor estudiar 
 ·  Translate
Add a comment...

Mazin Kalil

Math Questions  - 
7
1
Snail Erato's profile photodeepak ragu's profile photoMichał Radwański's profile photo
9 comments
 
+Snail Erato I didn't note that way to prove that BOC is 90 degrees ;-)
Add a comment...
 
Great calculation..... 
24
10
Rhonda Roberts's profile photoEmil Niclas's profile photoSAI OBODAI's profile photoVedanth Bhatnagar's profile photo
3 comments
 
Wkwk..
Add a comment...

Peniel Jones

Communities  - 
 
Adkitts Metals Company are looking forward to be well known all over the united States of America as we are looking for some good representative all over the States. if you would You like  your Car, truck, vehicle, bicycle to be wrapped or a space in front of your house  in an Ad for $300 Weekly for adkitts metals company, please contact the Adkitts Metals AD manager for  further information about how to go on the AD." (adkitts.metals@gmail.com).
1
Add a comment...

Assignment Expert

Videos/Pictures  - 
45
11
Gabrielle Rabon's profile photoLaveshsingh Ramjunum's profile photoAishvarya Sampath Raghavan's profile photoIsabella Södergren's profile photo
5 comments
 
Did you know the half of it
Add a comment...
 
Okay mathematicians buckle up for a bit of logic, lets see who are really intelligent out there.
A boy said I have the pics of world's first camera, now I am going to the museum submit this of course get some reward....ha ha!
Now you mathematician use your skills to find out is this kid, kidding or........
Try.....
2
Joshua Goodman's profile photoRachel Adamec's profile photo
18 comments
 
Used mirrors to take the photo
Add a comment...