Recognised as Decimal number

11.5

Positive
Decimal
1 d.p.
Exact fraction
3 s.f.

11.5 is a decimal number equal to 23⁄2. It lies between 11 and 12, and as a percentage it is 1,150%.

Number properties

Absolute value11.5

SignPositive

Integer part11

Fractional part0.5

Decimal places1

Floor11

Ceiling12

Rounded to nearest12

Truncated11

Fractions & ratios

As a fraction23/2exact

Ratio23 : 2

As a percentage1,150%

Reciprocal0.0869565217≈

Arithmetic

Double23

Half5.75

Square132.25

Cube1,520.875

Square root3.3911649916≈

Cube root2.2571787177≈

Negation-11.5

Natural logarithm2.4423470354≈

Logarithm base 101.0606978404≈

Representations

Decimal11.5

Scientific notation1.15 × 10^1

Exponential1.15e+1

IEEE 754 binary64 (hex)0x4027000000000000the exact 64-bit pattern stored

IEEE 754 binary32 (hex)0x4138000032-bit single precision, may lose accuracy

Stored as11.5the nearest binary64 value to what you typed

Rounding & precision

Significant figures as written3counted from the digits as typed, not from the value

To 0 decimal places12

To 1 decimal place11.5

To 2 decimal places11.50

To 3 decimal places11.500

To 4 decimal places11.5000

To 1 significant figure1e+1

To 2 significant figures12

To 3 significant figures11.5

To 4 significant figures11.50

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