3 ms·
> 1kg is not exactly 1000g, that would be 1.000kg Really? Why? I would have assumed that 1kg is in fact exactly 1000g, and that the trailing zeros in 1.000kg i
by dghf 6y ago
> 1kg is not exactly 1000g, that would be 1.000kg
Really? Why? I would have assumed that 1kg is in fact exactly 1000g, and that the trailing zeros in 1.000kg indicated a rounding to three decimal places: i.e. 999.5g <= 1.000kg < 1000.5g
- jonsen 6y agoI may have used ‘exactly’ sloppy here. What I mean is: When the context doesn’t say otherwise, one should assume accuracy or precision as rounding to the least significant digit given. I.e. by default 1kg may indicate a mass between 500g and 1.499g. If the accuracy is about 10g you should write 1.00kg.