Recognised as Decimal number

1.98

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

1.98 is a decimal number equal to 99⁄50. It lies between 1 and 2, and as a percentage it is 198%.

Number properties

Absolute value1.98

SignPositive

Integer part1

Fractional part0.98

Decimal places2

Floor1

Ceiling2

Rounded to nearest2

Truncated1

Fractions & ratios

As a fraction99/50exact

Ratio99 : 50

As a percentage198%

Reciprocal0.5050505051≈

Arithmetic

Double3.96

Half0.99

Square3.9204

Cube7.762392

Square root1.4071247279≈

Cube root1.2557072356≈

Negation-1.98

Natural logarithm0.6830968447≈

Logarithm base 100.2966651903≈

Representations

Decimal1.98

Scientific notation1.98 × 10^0

Exponential1.98e+0

IEEE 754 binary64 (hex)0x3FFFAE147AE147AEthe exact 64-bit pattern stored

IEEE 754 binary32 (hex)0x3FFD70A432-bit single precision, may lose accuracy

Stored as1.98the 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 places2

To 1 decimal place2.0

To 2 decimal places1.98

To 3 decimal places1.980

To 4 decimal places1.9800

To 1 significant figure2

To 2 significant figures2.0

To 3 significant figures1.98

To 4 significant figures1.980

Keep nerding

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