An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

An expression specifying the number of meaningful digits to the right of the → decimal point. For example, e = 2.71828 ... = 2.718 is said to be accurate to three decimal places and 2.72 to two decimal places.

→ accurate; → decimal; → place.

Referring to or based in the number 10; relating to tens or tenths.

M.L. decimalis "of tithes or tenths," from L. decimus "tenth," from decem, → ten.

Dahi , of or relating to dah, → ten; dahdahi literally "ten by ten."

A fraction expressed by using → decimal representation, as opposed to a vulgar fraction. For example, 2/5 is a vulgar fraction; 0.40 is a decimal fraction.

→ decimal; → fraction.

→ common logarithm.

→ decimal; → logarithm.

A system of numerals for representing real numbers that uses the → base 10. It includes the digits from 0 through 9.

→ decimal; → system.

The position of a digit to the right of a → decimal point written in decimal notation. In 0.032, for example, 0 is the first decimal place, 3 is the second decimal place, and 2 is the third decimal place.

→ decimal; → place.

Raqam, → digit; pas, → after; jodâgar, momayez, → decimal point.

A symbol (usually a point or dot) used to separate the integer part from the fractional part of a → decimal number.

→ decimal; → point.

Jodâgar, → separator.
Momayez, from Ar. mumaiyiz "distinguisher, discerner, separator."

A representation of a real number between 0 and 1, as written a = d₁d₂d₃ ..., where each d_i is one of the digits 0, 1, 2, ..., 9. This means that a = d₁ x 10^-1 + d₂ x 10^-2 + d₃ x 10^-3+ ...

→ decimal; → representation.

same as → decimal number system.

→ decimal; → number; → system.