The fifth letter of the Roman alphabet, e is derived from the Greek letter epsilon which is much the same in appearance and function. The Semitic hê probably first represented a praying or calling human figure. In Semitic, the letter was pronounced /h/ (in foreign words also /e/), in Greek He became Εψιλον (Epsilon) with the value /e/. Etruscans and Romans followed this usage. Due to the Great Vowel Shift, English usage is rather different, namely /i:/ in ME or BEE, whereas other words like BED are quite close to Latin or Continental European usage. |
The fifth letter of the Roman alphabet, e is derived from the Greek letter epsilon which is much the same in appearance and function. The Semitic hê probably first represented a praying or calling human figure. In Semitic, the letter was pronounced /h/ (in foreign words also /e/), in Greek He became Εψιλον (Epsilon) with the value /e/. Etruscans and Romans followed this usage. Due to the Great Vowel Shift, English usage is rather different, namely /i:/ in ME or BEE, whereas other words like BED are quite close to Latin or Continental European usage. |
Like other Latin vowels, e came in a long (sounded as in they) and a short variety (sounded as in pet). In other languages which use the letter it takes on various other values, sometimes with accents to indicate which one (ê,é,è,ë). |
Like other Latin vowels, e came in a long (sounded as in they) and a short variety (sounded as in pet). In other languages which use the letter it takes on various other values, sometimes with accents to indicate which one (ê,é,è,ë). |
In mathematics, e is a transcendental number (approximately equal to 2.71828) which is used as the [number base]? for natural logarithms. It is defined such that: |
In mathematics, e is a transcendental number (approximately equal to 2.71828) which is used as the base for natural logarithms. See e - base of natural logarithm. |
e ∫x-1dx = 1 => ln(|e|) = 1 = loge(e) 1 also: e = lim (1 + x-1)x x->∞ ∞ e = ∑(n!)-1 n=0 |