Convert and calculate exact decimal/E-notation values, compare scientific and engineering forms and inspect decimal-place movement.
01 / PURPOSE-SPECIFIC INPUTS
02 / RESULT & INTERACTIVE INSPECTION
Conversions and basic rational arithmetic support exponent magnitudes through 1000 per input without floating-point overflow. Powers, roots, word-form naming and automatic experimental significant-figure propagation are outside this tool.
Original input: 123000
1.23 × 10^5 • 0 decimal places 1.23 × 10^5
Decimal moved 0 place(s) nowhere; compensating exponent 5. The represented displayed value is unchanged.
| Representation | Value |
|---|---|
| Scientific | 1.23 × 10^5 |
| Engineering | 123 × 10^3 |
| E-notation | 1.23e5 |
| Decimal | 123000 |
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Use ordinary decimals, E notation such as 1.23e5, or coefficient × 10^exponent. Each input supports up to 200 mantissa digits and exponent magnitude 1000, avoiding ordinary floating-point overflow.
Convert and calculate exact decimal/E-notation values, compare scientific and engineering forms and inspect decimal-place movement. Inspect actual values and worked assumptions through accessible interactive controls.
Scientific Notation Calculator calculations run locally in browser memory. Expressions, measurements, schedules and datasets are not sent to an external calculation-processing API or saved as a personal profile. Ordinary website requests may still be logged. Clipboard access occurs only when you choose Copy Result.
Use ordinary decimals, E notation such as 1.23e5, or coefficient × 10^exponent. Each input supports up to 200 mantissa digits and exponent magnitude 1000, avoiding ordinary floating-point overflow.
Decimals and scientific inputs become exact BigInt rational values. Addition, subtraction, multiplication and division operate on those rationals; the displayed significant-digit coefficient is rounded separately.
Scientific notation normalizes a nonzero coefficient to magnitude from 1 up to but excluding 10. Engineering notation uses an exponent divisible by three. E notation replaces ×10^ with e.
No. It caps display digits and rounds half away from zero; it does not infer experimental uncertainty. Trailing zeros are not invented, and ambiguous trailing integer zeros do not establish measured significance.
Zero is displayed as 0 × 10^0, or 0e0. Zero has no uniquely determined order of magnitude; exponent zero is an explicit display convention.
No. Moving the displayed coefficient’s decimal point is offset by the opposite exponent change. The inspector illustrates the rounded display, while exact decimal or nonterminating-rational information stays in the result table.