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Luach absalóideach Sainmhíniú

The absolute value or modulus of a real number x, denoted |x|, is the non-negative value of x without regard to its sign. Namely, |x| = x if x is positive, and |x| = −x if x is negative (in which case −x is positive), and |0| = 0. For example, the absolute value of 3 is 3, and the absolute value of −3 is also 3. Essentially, absolute value turns all negative numbers positive and leaves positive numbers and zero unchanged. The absolute value of a number may be thought of as its distance from zero.

Is é luach absalóideach uimhreach an fad idir an uimhir agus an t -ábhar . Is sainmhíniú níos scagtha ar luach absalóideach é seo mar a nascann sé an coincheap de luach absalóideach leis an luach absalóideach uimhir chasta agus méid méid veicteoir . Tarlaíonn ginearáltachtaí an ardluach d'uimhreacha réadacha i réimse leathan suíomhanna matamaiticiúla. Mar shampla, sainmhínítear luach absalóideach freisin do na huimhreacha casta , na quaternions, na fáinní ordaithe, na réimsí agus na spásanna veicteoir . Tá an luach absalóideach gaolmhar go dlúth leis na coincheapa méid , fad, agus norm i gcomhthéacsanna éagsúla matamaiticiúla agus fisiciúla.