It was set to mark the most significant digit of a number (wordmark).

Wherever possible a significant digit was retained in the new number.

A single processor would be used at the start (the most significant digit).

In some cases, it may be useful to know how exact the final significant digit is.

The answer should not have significant digits past the hundreds place.

I believe it's - I'm not quite sure on the least significant digit.

A science book that addresses "significant digits" will give you more information than I can fit in here.

For the first three fields, the most significant digit is on the left.

The least significant digit has been dropped if its uncertainty is greater than 1.

These store up to 14 significant digits depending on the calculator model.