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+5
383
7
Quintic convergence of Pi.....
Why does the following simple formula converge QUINTICALLY, or order 5, to the constant Pi?:
ⁿₐ₊₁=ⁿₐ+sin(ⁿₐ)+1/6(sin³)ⁿₐ . Any insights will be greatly appreciated. Thanks a lot.
advanced
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Guest
Dec 25, 2015
0
165
2
Find a, b...........
Hello and Merry Xmas: Can you please try and see if you can find the missing rational fraction (a/b), so that the identity is true: Pi/4=22arctan(1/38)+17arctan(7/601)+10arctan(a/b), find a/b. Thanks and have a great Christmas.
CPhill
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Guest
Dec 25, 2015
+5
173
1
answer plz
The growth of bacteria in a dish modeled by the function 2 to the power of t/2. For which value t is f(t)=32
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Guest
Dec 25, 2015
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434
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+91911
@ Wrap Lantern Fri 25/12/15 Christmas Day
The is called the Lantern Post because it lights the way to the "What is happening" thread
The "What is Happening" thread can be accessed directly. It is at the following address:
http://web2.0calc.com/questions/what-is-happening-wrap-4#r60
read more ..
Melody
Dec 25, 2015
+40
676
9
+1311
A Christmas Story from Dragonlance’s Journal.
A Christmas Story from Dragonlance’s Journal.
Christmas 2014. Santa’s SOL list.
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read more ..
Dragonlance
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Dragonlance
Dec 25, 2015
+40
550
8
+1311
Dragonlance’s Journal stories.
A Ouija board story.
Halloween eve 2014
read more ..
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Dragonlance
Dec 25, 2015
0
181
0
Comparison of 5 Great Mathematicians throughout World History
Here it is [chron?] → Arch, Newt, Lieb, Eule, Gaus
Guest
Dec 25, 2015
0
163
2
Greatest Math Guy????
Who is the greatest mathematician of all Time??? [on Eearth of course]
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Guest
Dec 25, 2015
+5
149
0
Not Homework Not anything just bored
Guest
Dec 25, 2015
0
150
3
Who knows how to prove Fermats Last Theorem??
Who knows how to prove Fermats Last Theorem??
No need to mention a Princeton dude with a 300 page proof.
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Guest
Dec 25, 2015
+15
473
23
+91911
@ Merry Christmas 2015
Nauseated
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Melody
Dec 25, 2015
0
225
0
math 3Q
1. what is mathematics? 2. why bother? 3. who u think great?
Guest
Dec 25, 2015
0
398
3
Mathematica Talent Contest
which greater? Plato Aristotle Euclid Archimedes Apollonius Fermat
Melody
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Guest
Dec 25, 2015
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96
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math
what is 304530*445 = 13350 9*5 = 45
Guest
Dec 25, 2015
Dec 24, 2015
0
121
1
estimating
what to estimate 28 to
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Guest
Dec 24, 2015
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472
1
m=2-sqrt(3)
m=2-sqrt(3)
m.(4-m).(2-m)/sqrt(3)
Melody
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Guest
Dec 24, 2015
0
111
1
i need help with 12 multipacation others i have please give me math facts
i need help with 12 multipacation others i have please give me math facts
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Guest
Dec 24, 2015
+5
337
3
+405
Help!!!
Can you please solve this from yesterday? http://web2.0calc.com/questions/ready-for-more-h-l
And...
read more ..
CPhill
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Complex
Dec 24, 2015
+5
276
1
+405
Help!!!
Can you please solve this from yesterday? http://web2.0calc.com/questions/ready-for-more-h-l
Complex
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Complex
Dec 24, 2015
0
422
2
+111
Find X in sqrt(1-(x^2))=i
Find X in sqrt(1-(x^2))=i
It is impossiable
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Mihail
Dec 24, 2015
0
116
1
hi im cool
5-5
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Guest
Dec 24, 2015
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202
4
+2493
what does that ~ mean
what does that ~ mean
Melody
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Solveit
Dec 24, 2015
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429
0
+91911
@@ Wrap Lantern Thursday 24/12/15 Christmas Eve
The is called the Lantern Post because it lights the way to the "What is happening" thread
The "What is Happening" thread can be accessed directly. It is at the following address:
http://web2.0calc.com/questions/what-is-happening-wrap-4#r58
read more ..
Melody
Dec 24, 2015
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