Happy π Day!
π = 3.14159 26535 89793 23846 26433 83279 50288...
Who would have known that the ratio of a circle's circumference to its diameter would generate interest though out human history? π never ends, and over 10 trillion digits have been calculate. I have memorized about 15 digits. The digit zero (0) does not appear until the 32nd digit.
Why is π such a "celebrity" number? Find out here:
According to Dr. James Grime, we can calculate the size of the observable universe using π with only 39 digits.
You can use the (very slow converging series) to get π:
π = 4 × (1 - 1/3 + 1/5 - 1/7 + 1/9 - 1/11 + 1/13 - 1/15 + 1/17...)
There are many songs about π. My favorite is "Pi" by Kate Bush (off the album "Aerial").
Tonight I plan to join desmos.com to participate in a π Day discussion.
To celebrate my birthday and π Day, I am going to share some mathematical artwork, which was created using the TI nSpire CX CAS iPad App.
Thursday, March 14, 2013
Happy π Day! And some Mathematical Art
Happy π Day!
HP 15C: Pythagorean Triples This program calculates the Pythagorean triple (A, B, C) such that A^2 + B^2 = C^2 by the formulas: ...
TI-36X Pro Review This is a review of the TI-36X Pro Calculator by Texas Instruments. History Originally, this was the TI-30X Pro that w...
Casio fx-991EX Classwiz Review Casio FX-991EX The next incarnation of the fx-991 line of Casio calculators is the fx-991 EX. ...
One of the missing features of the TI-82/83/84 family is the ability to convert between bases. Here are two programs in TI-Basic to help...