Johndcook - CURATED

Johndcook

Limitations on Venn diagrams

Limitations on Venn diagrams

4 days ago 4

Edit distance

Edit distance

5 days ago 5

Error in Ramanujan’s approximation for ellipse perimeter

Error in Ramanujan’s approximation for ellipse per...

1 week ago 5

Ceva, cevians, and Routh’s theorem

Ceva, cevians, and Routh’s theorem

2 weeks ago 13

Binomial bound

Binomial bound

2 weeks ago 13

Separable functions in different contexts

Separable functions in different contexts

3 weeks ago 15

Body roundness index

Body roundness index

3 weeks ago 11

A couple more variations on an ancient theme

A couple more variations on an ancient theme

3 weeks ago 14

Finding pi in the alphabet

Finding pi in the alphabet

3 weeks ago 15

Optimal rational approximation

Optimal rational approximation

4 weeks ago 11

Ancient accurate approximation for sine

Ancient accurate approximation for sine

1 month ago 20

A better integral for the normal distribution

A better integral for the normal distribution

1 month ago 22

The negative binomial distribution and Pascal’s triangle

The negative binomial distribution and Pascal’s tr...

1 month ago 20

Variance matters more than mean in the extremes

Variance matters more than mean in the extremes

1 month ago 35

Ptolemy’s theorem

Ptolemy’s theorem

1 month ago 18

Rule for converting trig identities into hyperbolic identities

Rule for converting trig identities into hyperboli...

1 month ago 14

Interpolation and the cotanc function

Interpolation and the cotanc function

1 month ago 19

Binomial coefficients with non-integer arguments

Binomial coefficients with non-integer arguments

1 month ago 16