Torticollis is a problem involving the muscles of the neck that causes the head to tilt down. The term comes from two Latin words: tortus, which means twisted, and collum, which means neck. If your baby has the condition at birth, itâs called congenital muscular torticollis. Thatâs the most common type.
Definition of additive inverse. : a number that when added to a given number gives zero the additive inverse of 4 is â4 â compare opposite 3.
The determinant of A is defined only is A is a square matrix. The inverse of A is defined only if A is a square matrix with nonzero determinant. As the matrices P and Q are of the same size, we know P+Q can be performed. To do this in Excel, we use the following steps.he determinant of A is defined only is A is a square matrix. The inverse of A is defined only if A is a square matrix with nonzero determinant. As the matrices P and Q are of the same size, we know P+Q can be performed. To do this in Excel, we use the following steps.