0 the numbers used to write a number to be as exact as is needed: --
2.3945 to two significant digits is 2.4.
Floating point numbers are, in general, represented approximately to a fixed number of significant digits and scaled using an exponent.
The decimal type can represent values ranging from 1.0 1028 to approximately 7.9 1028 with 28-29 significant digits.
All tasks were calculated correctly to 8 significant digits.
An approximated value with only three significant digits would be instead.
The numbers are, in general, represented approximately to a fixed number of significant digits (the significand) and scaled using an exponent.
A $100 prize was offered to whoever produced the most accurate solutions, measured up to 10 significant digits.
The rule was body, tip, dot, providing two significant digits for value and the decimal multiplier, in that sequence.
Numerical approximations sometimes result from using a small number of significant digits.
