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Article 11 — Appendix A.1abs — absolute value functionCategory. Mathematics. Abstract. Absolute value: definition, graph, properties and identities. References. This article is a part of scientific calculator LiL, scientific calculator LiX, scientific calculator LiLc and scientific calculator LiXc products. 1. DefinitionAbsolute value function is defined as x = x for x ≥ 0;x = −x for x < 0. 2. GraphAbsolute value function is defined everywhere on real axis. Its graph is depicted below — fig. 1. Fig. 1. Graph of the absolute value function y = x.Function codomain is nonnegative half of the real axis: [0, +∞). 3. IdentitiesFunction is symmetrical: −x = xSum and difference of arguments: x + y = x + y, if signx = signyx + y = x − y, if signx ≠ signy x − y = x − y, if signx = signy x − y = x + y, if signx ≠ signy Product and ratio of arguments: xy = xyx /y = x /y 4. SupportAbsolute value function abs is supported in: Absolute value function of the complex argument abs is supported in:
5. How to useTo calculate absolute value of the number:
To calculate absolute value of the current result:
To calculate absolute value of the number x in memory:



