IBM APL2 was my first language, along with C. At one time Merrill Lynch and Morgan Stanley had gigantic APL2 workspaces (ML) and Sharp (MS) that they used for

IBM APL2 was my first language, along with C. At one time Merrill Lynch and Morgan Stanley had gigantic APL2 workspaces (ML) and Sharp (MS) that they used for most of their mortgage trading and underwriting analytics, and a few dozen APL programmers. They were noisy places cause people were always screaming obscenities at each other An acquaintance of mine had a job in high school, that entailed coding for Ken Iverson in APL. That's how he learned