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# Getting answer to display as E3,E6,E-3

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HP Prime

Is there any way to get this calculator to always display the answer as something times 10 to a 3, 6, 9 and so on?

In other words, I want:

0.00684 to display as 6.84E-3

But I also want:

0.000684 to display as 0.684E-3

rather than 6.84E-4

As another example:

0.000000684 to display as either 0.684E-6

rather than 6.84E-5

The reason for this is so that it will always be on a standard prefix mili, micro, kilo and so on.

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In your home settings screen (SHIFT-HOME) change your number display format to "scientific".

TW

Although I work for the HP calculator group as a head developer of the HP Prime, the views and opinions I post here are my own.
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Hi!, @on4now4:

The examples what you want, is not possible, by single conversion ... to Scientific and/or Engineering Number Format.

See, the concept, of Scientific Notation ... http://mathworld.wolfram.com/ScientificNotation.html , too, for Engineering Notation ... http://www.purplemath.com/modules/exponent4.htm

0.000684, to display as, 0.684E-3, in Scientific Number Format, with 3 decimal, is ... 6.840E-4

0.000000684, to display, as 0.684E-6, in Scientific Number Format, with 3 decimal, is ... 6.840E-7

SI prefixes:

 milli m 1000−1 10−3 0.001 micro μ 1000−2 10−6 1e-06

E-3 = -0.2817181715409549

E-6 = -3.281718171541

Kind Regards !.
Have a nice day !.
Provost in HP Spanish Public Forum ... https://h30467.www3.hp.com/
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Select engineering number format (in Home settings).

It will display numbers in a way you need, with an exponent that is a multiple of 3

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I could have sworn I tried that but yeah it seems to be working.  Asweome.

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Hi!, @on4now4:

I'm don't understand, how you solve, your problems. Can you, explained ?.

From, the User Guide ...

Number Format The number format you set is the format used in all Home view calculations.

● Standard—Full-precision display.

● Fixed—Displays results rounded to a number of decimal places. If you choose this option, a new  field  appears for you to enter the number of decimal places. For example, 123.456789 becomes 123.46 in  Fixed 2  format.

● Scientific—Displays results with an one-digit exponent to the left of the decimal point, and the  specified  number of decimal places. For example, 123.456789 becomes 1.23E2 in  Scientific  2  format.

● Engineering—Displays results with an exponent that is a multiple of 3, and the specified  number of  significant  digits beyond the  first  one. Example: 123.456E7 becomes 1.23E9 in  Engineering 2  format.

In comparison, with Wolfram Alpha ...

Kind Regards !.
Have a nice day !.