Type the value exactly as provided—either an integer like 123 or a decimal like 45.6789—without rounding.
Do not apply any rounding to the input.
Explanation
Preserving the exact input ensures that you retain all digits and the intended precision. When you perform calculations, many languages and systems offer different numeric types that can introduce rounding errors if intermediate results are rounded too early. To avoid this, keep full precision during computations and only round when you explicitly need a final display value. If exact decimal representation is important (for financial data, measurements, etc.), consider using decimal or arbitrary-precision types or treating numbers as strings for storage or transmission. Be mindful that some native floating-point representations cannot store every decimal exactly, which is a common source of tiny rounding artifacts.
Key Points
- 1, Type the number exactly as supplied (e.g., 123 or 45.6789) and do not apply any rounding.
- 2, In calculations, strive to keep full precision until the result is final; avoid intermediate rounding.
- 3, For exact decimal arithmetic, use appropriate types or representations (strings or decimal libraries) to avoid floating-point rounding errors.