New Year Mathematical Card or V Points Mathematical Constant

Mathematical Card Tricks

Trick: Deal 27 cards, face up onto a table in three columns with 9 cards in each. Ask your victim to choose a card but not to tell you what it is. Three times, ask in which column the card lies, and each time, collect the cards, putting the selected column between the cards in the other two columns, leaving the columns in order, and then deal the cards again by rows to make the next set of colu...

Juggling and Card Shuffling Meet Mathematical Fonts

We explore two of Ron Graham’s passions—juggling patterns and perfect card shuffling— through one of our passions, mathematical fonts. First, for each letter of the English alphabet, we design a one-person three-ball juggling pattern where the balls trace out the letter (possibly rotated 90◦). Second, using a deck of 26 cards labeled A through Z, we show how to perform a sequence of in/out perf...

Determining Points on Handwritten Mathematical Symbols

In a variety of applications, such as handwritten mathematics and diagram labelling, it is common to have symbols of many different sizes in use and for the writing not to follow simple baselines. In order to understand the scale and relative positioning of individual characters, it is necessary to identify the location of certain expected features. These are typically identified by particular ...

On the Mathematical Background of Gilbreath's Card Trick

In Martin Gardner's book \New mathematical diversions from Scientiic American" it is described how certain information concerning the initial distribution of a deck of cards survives an arbitrarily thorough riie shuue. This gives rise to a card trick which is attributed to Norman Gilbreath, several other tricks presented in magic journals are based on the same principle. Here we aim to generali...

New Trends in Mathematical Finance