sum digit
41Kakuro — An easy Kakuro puzzle Solution for the above puzzle …
42International Securities Identifying Number — An International Securities Identifying Number (ISIN) uniquely identifies a security. Its structure is defined in ISO 6166. Securities for which ISINs are issued include bonds, commercial paper, equities and warrants. The ISIN code is a 12… …
43POSTNET — Value Encoding 1 2 3 4 …
44Digital root — The digital root (also repeated digital sum) of a number is the (single digit) value obtained by an iterative process of summing digits, on each iteration using the result from the previous iteration to compute a digit sum. The process continues… …
45Carry-lookahead adder — 4 bit adder with carry lookahead A carry lookahead adder (CLA) is a type of adder used in digital logic. A carry lookahead adder improves speed by reducing the amount of time required to determine carry bits. It can be contrasted with the simpler …
46Pi — This article is about the number. For the Greek letter, see Pi (letter). For other uses, see Pi (disambiguation). The circumference of a ci …
47Approximations of π — Timeline of approximations for pi …
48Binary-coded decimal — In computing and electronic systems, binary coded decimal (BCD) is a digital encoding method for numbers using decimal notation, with each decimal digit represented by its own binary sequence. In BCD, a numeral is usually represented by four bits …
490 (number) — Zero redirects here. For other uses, see Zero (disambiguation). 0 −1 0 1 2 3 4 5 6 7 8 …
50Trachtenberg system — The Trachtenberg System is a system of rapid mental calculation, somewhat similar to Vedic mathematics. It was developed by the Ukrainian engineer Jakow Trachtenberg in order to keep his mind occupied while being held in a Nazi concentration camp …
