<P> Most calculators and many computer programs present very large and very small results in scientific notation, typically invoked by a key labelled EXP (for exponent), EEX (for enter exponent), EE, EX, E, or × 10 depending on vendor and model . Because superscripted exponents like 10 cannot always be conveniently displayed, the letter E (or e) is often used to represent "times ten raised to the power of" (which would be written as "× 10") and is followed by the value of the exponent; in other words, for any two real numbers m and n, the usage of "mEn" would indicate a value of m × 10 . In this usage the character e is not related to the mathematical constant e or the exponential function e (a confusion that is unlikely if scientific notation is represented by a capital E). Although the E stands for exponent, the notation is usually referred to as (scientific) E-notation rather than (scientific) exponential notation . The use of E-notation facilitates data entry and readability in textual communication since it minimizes keystrokes, avoids reduced font sizes and provides a simpler and more concise display, but it is not encouraged in some publications . </P> <Ul> <Li> In most popular programming languages, 6.022 E23 (or 6.022 e23) is equivalent to 7023602200000000000 ♠ 6.022 × 10, and 6965160000000000000 ♠ 1.6 × 10 would be written 1.6 E-35 (e.g. Ada, Analytica, C / C++, FORTRAN (since FORTRAN II as of 1958), MATLAB, Scilab, Perl, Java, Python, Lua, JavaScript, and others). </Li> <Li> After the introduction of the first pocket calculators supporting scientific notation in 1972 (HP - 35, SR - 10) the term decapower was sometimes used in the emerging user communities for the power - of - ten multiplier in order to better distinguish it from "normal" exponents . Likewise, the letter "D" was used in typewritten numbers . This notation was proposed by Jim Davidson and published in the January 1976 issue of Richard J. Nelson's Hewlett - Packard newsletter 65 Notes for HP - 65 users, and it was adopted and carried over into the Texas Instruments community by Richard C. Vanderburgh, the editor of the 52 - Notes newsletter for SR - 52 users in November 1976 . </Li> <Li> FORTRAN (at least since FORTRAN IV as of 1961) also uses "D" to signify double precision numbers . </Li> <Li> Similar, a "D" was used by Sharp pocket computers PC - 1280, PC - 1470U, PC - 1475, PC - 1480U, PC - 1490U, PC - 1490UII, PC - E500, PC - E500S, PC - E550, PC - E650 and PC - U6000 to indicate 20 - digit double - precision numbers in BASIC between 1987 and 1995 . </Li> <Li> The ALGOL 60 (1960) programming language uses a subscript ten "" character instead of the letter E, for example: 6.022 23 . </Li> <Li> The use of the "" in the various Algol standards provided a challenge on some computer systems that did not provide such a "" character . As a consequence Stanford University Algol - W required the use of a single quote, e.g. 6.02486'+ 23, and some Soviet Algol variants allowed the use of the Cyrillic character "ю" character, e.g. 6.022 ю + 23 . </Li> <Li> Subsequently the ALGOL 68 programming language provided the choice of 4 characters: E, e, \, or . By examples: 6.022 E23, 6.022 e23, 6.022 \ 23 or 6.022 23 . </Li> </Ul> <Li> In most popular programming languages, 6.022 E23 (or 6.022 e23) is equivalent to 7023602200000000000 ♠ 6.022 × 10, and 6965160000000000000 ♠ 1.6 × 10 would be written 1.6 E-35 (e.g. Ada, Analytica, C / C++, FORTRAN (since FORTRAN II as of 1958), MATLAB, Scilab, Perl, Java, Python, Lua, JavaScript, and others). </Li> <Li> After the introduction of the first pocket calculators supporting scientific notation in 1972 (HP - 35, SR - 10) the term decapower was sometimes used in the emerging user communities for the power - of - ten multiplier in order to better distinguish it from "normal" exponents . Likewise, the letter "D" was used in typewritten numbers . This notation was proposed by Jim Davidson and published in the January 1976 issue of Richard J. Nelson's Hewlett - Packard newsletter 65 Notes for HP - 65 users, and it was adopted and carried over into the Texas Instruments community by Richard C. Vanderburgh, the editor of the 52 - Notes newsletter for SR - 52 users in November 1976 . </Li>

How to represent power of a number in c
find me the text answering this question