Sekvenssi

Sekvenssi, Finnish for "sequence," denotes an ordered collection of elements that follows a defined rule or pattern. The concept appears in several disciplines, often sharing the general idea of elements arranged in a specific order, indexed by position rather than by content alone.

In mathematics, a sequence is an indexed list of objects, commonly numbers. A sequence can be finite or infinite. Common examples include arithmetic sequences, where consecutive terms differ by a constant d, and geometric sequences, where each term is multiplied by a constant r. Analyses focus on properties such as convergence, limits, and special sequences like the Fibonacci sequence.

In computer science, sequences describe ordered collections such as arrays, lists, or strings. They support operations like indexing, concatenation, slicing, and iteration. A string, for example, is a sequence of characters. Sequences are foundational to algorithms, data processing, and formal languages, where the order of symbols matters.

In biology and bioinformatics, "sequence" commonly refers to the order of nucleotides in DNA or RNA, or amino acids in a protein. DNA sequencing technologies determine these orders, enabling genome assembly, comparison, and functional analysis. Sequence alignment methods identify regions of similarity, supporting evolutionary studies and medical research.

Etymology and usage: The Finnish term sekvenssi is derived from the English "sequence" and is used across science education and literature to describe the same ordered concept in various contexts.

See also: Sequence (mathematics), DNA sequencing, Sequence alignment, List (data structure).