ACOS |
ACOS(number) |
Returns the angle in radians for a given cosine ratio. |
number | The cosine ratio. |
REMARKS |
* For an illustrated example refer to the Trigonometric Functions page. * This function always returns an angle between 0 and PI. * If "number" is not numeric, then #VALUE! is returned. * If "number" > 1, then #NUM! is returned. * If "number" < -1, then #NUM! is returned. * To convert a number from degress to radians, multiply it by PI/180. * To convert a number from radians to degrees, multiply it by 180/PI. * The inverse of this function is the COS function. * You can use the COS function to return the cosine of a number. * You can use the ACOT function to return the the arc-cotangent. * You can use the ASIN function to return the arc-sine. * You can use the ATAN function to return the arc-tangent. * You can use the RADIANS function to convert from degrees to radians. * You can use the DEGREES function to convert from radians to degrees. * For the Microsoft documentation refer to support.microsoft.com |
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1 - What is the angle in radians for a cosine ratio of -1. 2 - What is the angle in radians for a cosine ratio of -0.5 3 - What is the angle in radians for a cosine ratio of 0 4 - What is the angle in radians for a cosine ratio of 0.5 5 - What is the angle in radians for a cosine ratio of 1 6 - When number is >1 7 - What is the angle in degrees for a cosine ratio of 0.5 8 - What is the angle in degrees for a cosine ratio of 0.5 9 - What is the inverse of cosine. 10 - When number is not numeric |
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