Kevin Raney (@RaneyMath) header
Kevin Raney (@RaneyMath) profile picture

Kevin Raney

@RaneyMath

13.1 - 26.2 - 3.14 - 2.718

 Bloomington, Indiana, USA
Joined September 2014
  • Tweets785
  • Following293
  • Followers92
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Photo by Kevin Raney (@RaneyMath)Photo by Kevin Raney (@RaneyMath)Photo by Kevin Raney (@RaneyMath)Photo by Kevin Raney (@RaneyMath)Photo by Kevin Raney (@RaneyMath)Photo by Kevin Raney (@RaneyMath)Photo by Kevin Raney (@RaneyMath)Photo by Kevin Raney (@RaneyMath)Photo by Kevin Raney (@RaneyMath)Photo by Kevin Raney (@RaneyMath)
Mathematics. Construction of a "Limaçon of Pascal" as a "pedal curve" of a circle. Source: bit.ly/2TfOxhA
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When the slide is continuous but not differentiable
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Kevin Raney retweeted
Cliff Pickover (@pickover) profile picture
Cliff Pickover
@pickover2 Oct 2024
Mathematics. It's actually possible to draw a hyperbola with two circles." By Idan Tal, @MagicPi2, Used with permission.
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PUNS (@ThePunnyWorld) profile picture
PUNS
@ThePunnyWorld6 Aug 2024
Eating too much cake is the sin of gluttony. However, eating too much pie is okay because the sin of pi is always zero.
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In 1969 Apollo 11, the spaceflight that first landed humans on the Moon, used these 30 lines of code to calculate transcendental functions like sine and cosine essential for navigation
Image from Fermat's Library (@fermatslibrary)
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Continuity 💪
Epic handshake meme. The left arm is captioned "lim_{x-->a-}f(x)", the right arm is captioned "lim_{x-->a+}f(x)", and the handshake is captioned "f(a)".

ALT Epic handshake meme. The left arm is captioned "lim_{x-->a-}f(x)", the right arm is captioned "lim_{x-->a+}f(x)", and the handshake is captioned "f(a)".

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Mathematics. Welcome to Heaven. Graph of the equation y = 1/x. Shiver. e is the unique number larger than 1 that makes the shaded area under the curve equal to 1. bit.ly/3KOmVv6
Image from Cliff Pickover (@pickover)
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Mathematics. Transcendent. The global maximum of the x-th root of x occurs at x = e. Nice.
Image from Cliff Pickover (@pickover)
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Kevin Raney retweeted
Cliff Pickover (@pickover) profile picture
Cliff Pickover
@pickover6 Jun 2024
Mathematics. "Approximating the shape of an M&M as an oblate spheroid, the volume of chocolate in it is (4/3)πa²b, where a is the long radius and b the short one." Source: bit.ly/3VxdV3N
Image from Cliff Pickover (@pickover)
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Kevin Raney retweeted
Cliff Pickover (@pickover) profile picture
Cliff Pickover
@pickover4 Jun 2024
Mathematics. Computer programming. Creating an ellipse. bit.ly/2gaE95D
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Union vs Intersection
A 2-panel meme. The first panel shows Vsauce with a beard union Vsauce with high hair equaling Vsauce with a beard and high hair. The second panel shows Vsauce with a beard intersection Vsauce with high hair equaling Vsauce with no beard or high hair

ALT A 2-panel meme. The first panel shows Vsauce with a beard union Vsauce with high hair equaling Vsauce with a beard and high hair. The second panel shows Vsauce with a beard intersection Vsauce with high hair equaling Vsauce with no beard or high hair

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Kevin Raney retweeted
Cliff Pickover (@pickover) profile picture
Cliff Pickover
@pickover2 Jun 2024
This is a mathematics joke. Source: bit.ly/3vKs1l4
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Kevin Raney retweeted
Math World (@Math_World_) profile picture
Math World@Math_World_14 May 2024
😄 Continue with other examples…
Image from Math World (@Math_World_)
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I told my son that we are having some of our graduating senior math majors over to our house tomorrow. He said, “When they graduate, do they get degrees… or radians?”
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Doing them proud
Aang sees past avatars meme. The past avatars are captioned “the mathematicians who spent centuries developing the theory”, and Aang is captioned “me reading a math textbook”.

ALT Aang sees past avatars meme. The past avatars are captioned “the mathematicians who spent centuries developing the theory”, and Aang is captioned “me reading a math textbook”.

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A visual proof of a formula for the sum of the first n cubes
Image from Fermat's Library (@fermatslibrary)
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This is a mathematics meme, which I found in the X stream of Howie Hua. He writes: "It's just adding 1 in the denominator, how bad can it be?" By @howie_hua, tiktok.com/@howie_hua, howiehua.wordpress.com, Used with permission.
Image from Cliff Pickover (@pickover)
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The letter π was first introduced as a symbol for the ratio of the circumference of a circle to its diameter by the Welsh mathematician William Jones in 1706. π is the first letter of the Greek word "peripheria" (περιφέρεια), which means perimeter.
Image from Fermat's Library (@fermatslibrary)
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"Pure math is beautiful (and occasionally useful) and applied math is useful (and occasionally beautiful). But there's no reason to study fake applied math that is neither beautiful or useful." johndcook.com/blog/2024/04/1…

Precise answers to useless questions

I recently ran across a tweet from Allen Downey saying So much of 20th century statistics was just a waste of time, computing precise answers to useless questions. He's right. I taught mathematical...

johndcook.com
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No escaping linear algebra
A 2-panel meme. The first panel shows Winnie-the-Pooh next to the integration by parts formula “int udv = uv - int vdu.” The second panel shows a fancy looking Winnie-the-Pooh in a tuxedo next to “int u dv = det(u&du\\int v &v)

ALT A 2-panel meme. The first panel shows Winnie-the-Pooh next to the integration by parts formula “int udv = uv - int vdu.” The second panel shows a fancy looking Winnie-the-Pooh in a tuxedo next to “int u dv = det(u&du\\int v &v)

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