There are over 80 unvigintillion possible arrangements when shuffling a deck of cards.
The pizza theorem.
This theorem will be tested at lunch today. We will report back with our findings.
In continuing our goal to create “An App for Every Course, and More”, we are happy to announce the latest in our Course Assistant series of iOS apps: the Wolfram Linear Algebra Course Assistant. Powered by Wolfram|Alpha, the Wolfram Linear Algebra Course Assistant will help you work your way through homework problems, ace your tests, and gain a better understanding of linear algebra conepts!

This definitive app for linear algebra—from the world leader in math software—will help you solve complex problems on the fly. The Wolfram Linear Algebra Course Assistant covers a wide variety of topics, including solving an equation or a system of equations, adding or subtracting any two vectors, finding the cross product or dot product of two vectors, and computing linear transformations.
Learn more on our blog.
If you teach a STEM subject like math, physics, biology, or chemistry at a community college or primary/secondary school, the Wolfram STEM Program can give you the tools to engage your students and increase their understanding of the concepts you’re teaching… with Mathematica for $49!
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