kümnendarvuväljend

A kümnendarvuväljend, which translates to "decimal expression" in English, is a fundamental concept in mathematics representing a number that uses a decimal point to separate whole numbers from fractional parts. This notation allows for the precise representation of values that are not whole numbers, such as 0.5, 3.14, or 12.75. The digits to the left of the decimal point represent units, tens, hundreds, and so on, while the digits to the right represent tenths, hundredths, thousandths, and so forth. Each position to the right of the decimal point signifies a power of one-tenth. For instance, in the number 2.345, the '2' is in the units place, the '3' is in the tenths place (3/10), the '4' is in the hundredths place (4/100), and the '5' is in the thousandths place (5/1000). Decimal expressions are crucial in various fields, including arithmetic, algebra, calculus, and everyday applications like measurements, finance, and statistics. They provide a standardized and easily understandable way to work with non-integer values, facilitating calculations and comparisons. The system of decimal representation is part of a positional numeral system, where the value of a digit depends on its position within the number.