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The Epson name was coined by joining the initials EP (Electronic Printer) and the word son, making "Epson" mean "Electronic Printer's Son". [9] In April of the same year, Epson America Inc. was established to sell printers for Shinshu Seiki Co. Epson HX-20
Thomas Nicely, a professor of mathematics at Lynchburg College, had written code to enumerate primes, twin primes, prime triplets, and prime quadruplets.Nicely noticed some inconsistencies in the calculations on June 13, 1994, shortly after adding a Pentium system to his group of computers, but was unable to eliminate other factors (such as programming errors, motherboard chipsets, etc.) until ...
The problem is that in estimating the sample mean, the process has already made our estimate of the mean close to the value we sampled—identical, for n = 1. In the case of n = 1, the variance just cannot be estimated, because there is no variability in the sample. But consider n = 2. Suppose the sample were (0, 2).
The title is a reference to William Blake's The Marriage of Heaven and Hell, a concept that Lewis found a "disastrous error". This work deliberately echoes two other more famous works with a similar theme: the Divine Comedy of Dante Alighieri, and Bunyan's The Pilgrim's Progress.