Source: wikibot/kronecker-delta
= Kronecker delta
{wiki=Kronecker_delta}
The Kronecker delta is a mathematical function that is typically denoted by the symbol \\( \\delta_\{ij\} \\). It is defined as: \\\[ \\delta_\{ij\} = \\begin\{cases\} 1 & \\text\{if \} i = j \\\\ 0 & \\text\{if \} i \\neq j \\end\{cases\} \\\] In this definition, \\( i \\) and \\( j \\) are usually indices that can take integer values.