Difference between revisions of "User:Negativebplusorminus"

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<cmath>\sqrt{a+bi}=\sqrt{\frac{a+\sqrt{a^2+b^2}}{2}}+i\sqrt{\frac{-a+\sqrt{a^2+b^2}}{2}}</cmath>
 
<cmath>\sqrt{a+bi}=\sqrt{\frac{a+\sqrt{a^2+b^2}}{2}}+i\sqrt{\frac{-a+\sqrt{a^2+b^2}}{2}}</cmath>
 
I derived that equation myself, and I am quite proud of it.  I have a similar one for the fourth roots of <math>a+bi</math> which can be derived from inputting that equation into itself.  I have also found various roots of unity in their radical forms during my spare time.
 
I derived that equation myself, and I am quite proud of it.  I have a similar one for the fourth roots of <math>a+bi</math> which can be derived from inputting that equation into itself.  I have also found various roots of unity in their radical forms during my spare time.
==Spirographs==
 
I have created a great number of spirographs, each interesting and unique.  More can be found on my [http://www.artofproblemsolving.com/Forum/blog.php?u=93546& AoPS blog] (but you might have to look through a few pages of other stuff, too).  To view the entire collection, please visit [http://www.negativebplusorminus.blogspot.com negativebplusorminus.blogspot.com], but again, you might have to scroll down a bit.  Here are some samples:
 
<asy>
 
string s="Spirograph by user negativebplusorminus of the Art of Problem Solving forum. Please to not plagiarize; it is illegal and insulting.";
 
import graph;
 
size(300);
 
string s="for(real t,real u){return t^2u^3, store as f};";
 
real f(real t) {return t+log(t^2+t^4+1);}
 
int p=15;
 
int n=45+p;
 
path g=polargraph(f,-200pi,200pi,10000, operator --);
 
draw(g, orange);</asy>
 
<asy>
 
import graph;
 
size(300);
 
string s="for(real t,real u){return t^2u^3, store as f};";
 
real f(real t) {return floor(t);}
 
int p=25;
 
int n=45+p;
 
path g=polargraph(f,-100pi,100pi,281, operator --);
 
draw(g, blue);</asy>
 
 
 
==Inspirographs==
 
==Inspirographs==
 
Another amazing creation of mine.  More can be found [http://www.artofproblemsolving.com/Forum/blog.php?u=93546& here] (but you might have to look through a few pages of other stuff, too).
 
Another amazing creation of mine.  More can be found [http://www.artofproblemsolving.com/Forum/blog.php?u=93546& here] (but you might have to look through a few pages of other stuff, too).

Revision as of 19:00, 22 September 2015

A AoPS member, National MathCounts qualifier, and USAJMO qualifier.

Contest Results

MathCounts

In 2011, as a 7th grader, I didn't qualified for the State Countdown Round. In 2012, as an 8th grader, I lost the National MathCounts.

In the National competition, and scores as the worst.

AMCs

2012: 17 on AMC 10A, 27.5 on AMC 10B, 1 on AIME, 37.5 index for USAJMO. The cutoff was a 999.5, so I did not qualify for the USAJMO. However, I got 0 on the USAJMO. That thing is hard.

Equations for the Roots of the Complex

\[\sqrt{a+bi}=\sqrt{\frac{a+\sqrt{a^2+b^2}}{2}}+i\sqrt{\frac{-a+\sqrt{a^2+b^2}}{2}}\] I derived that equation myself, and I am quite proud of it. I have a similar one for the fourth roots of $a+bi$ which can be derived from inputting that equation into itself. I have also found various roots of unity in their radical forms during my spare time.

Inspirographs

Another amazing creation of mine. More can be found here (but you might have to look through a few pages of other stuff, too). To view the entire collection, please visit negativebplusorminus.blogspot.com in the near future (the site will be updated soon). Below are a few samples. <asy2> import graph3; import grid3; import palette; size(400,300,IgnoreAspect); defaultrender.merge=true; real f(pair z) {return sin(z.y)*(z.x^2+1)^(0.1*log(z.y^2+1));} surface s=surface(f,(-30,-30),(30,30),70,Spline); s.colors(palette(s.map(zpart),Rainbow())); draw(s,render(compression=Low,merge=true)); grid3(XYZgrid);</asy2> <asy2> import graph3; import grid3; import palette;currentprojection=orthographic(1,5,0.2); size(400,300,IgnoreAspect); defaultrender.merge=true; real f(pair z) {return sin(z.x^2+z.y^2);} surface s=surface(f,(-2.95,-2.95),(2.95,2.95),70,Spline); s.colors(palette(s.map(zpart),Rainbow())); draw(s,render(compression=Low,merge=true)); grid3(XYZgrid);</asy2>