Decimal number
0.9
- Positive
- Decimal
- 1 d.p.
- Exact fraction
0.9 is a decimal number equal to 9⁄10. It lies between 0 and 1, and as a percentage it is 90%.
Number properties
Fractions & ratios
Arithmetic
Representations
Decimal0.9
Scientific notation9 × 10^-1
Exponential9e-1
IEEE 754 binary64 (hex)0x3FECCCCCCCCCCCCDthe exact 64-bit pattern stored
IEEE 754 binary32 (hex)0x3F66666632-bit single precision, may lose accuracy
Stored as0.9the nearest binary64 value to what you typed
Rounding
To 0 decimal places1
To 1 decimal place0.9
To 2 decimal places0.90
To 3 decimal places0.900
To 4 decimal places0.9000
To 1 significant figure0.9
To 2 significant figures0.9
To 3 significant figures0.9
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