decimal point

[ des-uh-muhl point, des-muhl ]

noun

, Arithmetic.

1. a dot used to separate the whole part of a mixed number from its fractional part: for example, in the mixed number 32.89, the whole part is 32 whole units, the fractional part is 89 one-hundredths, and the dot that allows for the expression 32.89 is the decimal point:

   If you want to multiply 14.675 by 10, just move the decimal point one place to the right to get 146.75, the correct answer.

decimal point

noun

1. a full stop or a raised full stop placed between the integral and fractional parts of a number in the decimal system

decimal point

1. A period used in decimal notation to separate whole numbers from fractions, as in the number 1.3, which represents 1 + 3 10 .

decimal point

1. The point or dot placed to the left of decimals to separate them from the whole number portion of the decimal. When the number is spoken aloud, the word point is usually used to signify the decimal point. For example, “8.3” is read “eight point three.”

Usage

Conventions relating to the use of the decimal point are confused. The IX General Conference on Weights and Measures resolved in 1948 that the decimal point should be a point on the line or a comma, but not a centre dot. It also resolved that figures could be grouped in threes about the decimal point, but that no point or comma should be used for this purpose. These conventions are adopted in this dictionary. However, the Decimal Currency Board recommended that for sums of money the centre dot should be used as the decimal point and that the comma should be used as the thousand marker. Moreover, in some countries the position is reversed, the comma being used as the decimal point and the dot as the thousand marker

Word History and Origins

Origin of decimal point¹

First recorded in 1700–05

Example Sentences

As  Marcus says, the devil is often in the details in cases like this, “some decimal point in the wrong place.”

From The Daily Beast

The decimal point (or comma) was first used by the inventor of logarithms, John Napier, as early as 1616 and 1617.

From Project Gutenberg

Except for the omission of the decimal point, these logarithms are natural logarithms—the first of their kind ever published.

From Project Gutenberg

Ecks responded with a cartoon of "Miss Meekness, making a slip of the decimal point."

From Project Gutenberg

"Printer's error in the decimal point," returned the other, with airy impudence.

From Project Gutenberg

These are easily got from the corresponding percentages by shifting the decimal point one, three, or four places to the right.

From Project Gutenberg