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The Indian rupee sign (₹) is the currency symbol for the Indian rupee, the official currency of India.Designed by Udaya Kumar, it was presented to the public by the Government of India on 15 July 2010, following its selection through an open competition among Indian residents.
The sign of a permutation can be explicitly expressed as sgn(σ) = (−1) N(σ) where N(σ) is the number of inversions in σ. Alternatively, the sign of a permutation σ can be defined from its decomposition into the product of transpositions as sgn(σ) = (−1) m. where m is the number of transpositions in the decomposition.
In astrology a planet's domicile (or less commonly house, not to be confused with the astrological house system) is the zodiac sign over which it has rulership.This is a separate concept from the houses of the horoscope.
The halo sign of temporal arteritis should not be confused with Deuel's halo sign, which is a sign of fetal death. The halo sign is also understood as a region of ground-glass attenuation surrounding a pulmonary nodule on an X-ray computed tomography (CT scan) of the chest.
Trousseau sign is the name of two distinct phenomena observed in clinical medicine. Both are attributed to Armand Trousseau: . Trousseau sign of latent tetany; Trousseau sign of malignancy (aka migratory thrombophlebitis)
Sign extension (abbreviated as sext) is the operation, in computer arithmetic, of increasing the number of bits of a binary number while preserving the number's sign (positive/negative) and value. This is done by appending digits to the most significant side of the number, following a procedure dependent on the particular signed number ...
In medicine, Murphy's sign (Also called Sweeney’s sign) is a maneuver during a physical examination as part of the abdominal examination. It is useful for differentiating pain in the right upper quadrant. Typically, it is positive in cholecystitis, but negative in choledocholithiasis, pyelonephritis, and ascending cholangitis
This sign takes 24–48 hours to appear and can predict acute pancreatitis, with mortality rising from 8–10% to 40%. It may be accompanied by Grey Turner's sign  (bruising of the flank), which may then be indicative of pancreatic necrosis with retroperitoneal or intra-abdominal bleeding.