Changes

*ACOS is described as arcCOS of a given number and denoted by <math>cos^{-1}(x)</math>.

*ACOS is described as arcCOS of a given number and denoted by <math>cos^{-1}(x)</math>.

*In  ACOS(x), x value should be between -1 & 1.

*In  ACOS(x), x value should be between -1 & 1.

*To find the angle in degrees, multiply the result angle with 180/PI().

*To find the angle in degrees, multiply the result angle with 180/PI(), or use DEGREES function.<br/>

*DEGREES function can also be used.<br/>

For example ACOS(0.5)*180/PI() or DEGREES(ACOS(0.5))'' gives 60

For example ACOS(0.5)*180/PI() or DEGREES(ACOS(0.5))'' gives 60