On the latest episode of the ArrayCast we talk to Joel Kaplan , founder of 1010data.
Joel ran the Algorithmic Proprietary Trading group at Morgan Stanley for many years. In 1985 he hired Arthur Whitney , who wrote for the group a stripped-for-speed APL subset they called A, which became A+, for twenty years the Morgan platform for trading applications, and eventually kdb+ and the q language.
In this episode Joel talks to us about the difference between vector and scalar programming languages, about why some languages flourish, and about selling 1010data for half a billion dollars.