symmetrical alternating quantity

symmetrical alternating quantity

[sə′me·trə·kəl ′ȯl·tər‚nād·iŋ ′kwän·əd·ē]
(physics)
Alternating quantity of which all values separated by a half period have the same magnitude but opposite sign.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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