Mathematics for IGCSE & O level - Using A Calculator (Section 1 - No. 17)
In the context of a calculator, what does 'significant figures' refer to?
The number of digits to the right of the decimal point.
All digits in a number except leading zeros.
The total number of digits in a number.
Digits in a number that contribute to its precision.
解释
Significant figures indicate the precision of a measurement or calculation.