alternating function

alternating function

[′ȯl·tər·nād·iŋ ′fəŋk·shən]
(mathematics)
A function in which the interchange of two independent variables causes the dependent variable to change sign.
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The prosthetic wrist provides 290 degrees of ball bearing rotation with 14 locking position, and the cable-operated lock allow momentary or alternating function. There is also 50 degrees of flexion with three locking positions and a built-in quick-disconnect wrist unit for changing or repositioning terminal devices.
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