calculation
131Sharp EL-500W series — include a range of scientific calculators capable of displaying 2 lines, with multi line playback. It is the successor to the Sharp EL 500V series.FeaturesStarting with the W series, this product line supports dual line displays with multiple… …
132Interval arithmetic — Interval arithmetic, also called interval mathematics , interval analysis , and interval computation , is a method in mathematics. It has been developed by mathematicians since the 1950s and 1960s as an approach to putting bounds on rounding… …
