Scientific Notation accuracy and testing

Formula source

• The decimal point is moved until only one non-zero digit remains to the left. The number of places moved becomes the exponent. * **Large Numbers:** Moving decimal left makes exponent positive (1000 -> $1 \times 10^3$). * **Small Numbers:** Moving decimal right makes exponent negative (0.001 -> $1 \times 10^{-3}$).

Test cases

Known limitations

• This page documents the checked-in calculator logic and does not certify results for every real-world edge case.
• Use the result as a planning estimate unless the calculator page states a stricter purpose.

Assumptions

• This calculator formats numeric inputs; it does not parse a separate scientific-notation text mode.
• Outputs use JavaScript number formatting, so extremely large or tiny values follow normal floating-point limits.
• The scientific output is rounded to four digits after the decimal in the coefficient.
• The decimal output is shown as a plain decimal string instead of locale-shortened formatting.

Unit handling

• Number accepts numeric values.

Rounding rules

• Number displays use up to 2 decimal places in the calculator UI.

Version history

Change log