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October 22, 2014

October 22, 2014

Posted by **Yulia** on Monday, August 24, 2009 at 7:57pm.

is this the decimal equivalent? 31400000

What is the decimal equivalent of 2.8 e-4? (In the JavaScript web language, scientific notation normally written as 2 × 103 is written as 2e3.)

is the answer

= 0.00028?

- Physics -
**bobpursley**, Monday, August 24, 2009 at 7:58pmYEs, and yes

- Physics -
**bobpursley**, Monday, August 24, 2009 at 8:02pmJust a note on the use of e. Fifty years ago, when we programmed in Fortran, it would be written as 2.8EE-04

Many engineers and mathematicians used that, but in their personal notes, and on the blackboards, it was shortened to just one e (little e is easier to write than capital E), so 2.8e-4 would be the hand written version. It took and stayed, and many of us still use it. A few calculators use it also.

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