COS |
COS(number) |
Returns the cosine of a number. |
number | The number you want the cosine of. |
REMARKS |
* For an illustrated example refer to the [[Trigonometric Functions]] page. * The inverse of this function is the ACOS function. * The cosine of a number is 1/SEC. * This function is periodic with a period of 2PI. * The "number" is the angle in radians. * If "number" is not numeric, the #VALUE! is returned. * If your argument is in degrees, multiply it by PI/180 to convert it to radians. * If your argument is in radians, multiply it by 180/PI to convert it to degrees. * You can use the ACOS function to return the arc-cosine. * You can use the ACOT function to return the the arc-cotangent. * You can use the SIN function to return the sine. * You can use the TAN function to return the tangent. * You can use the DEGREES function to convert from radians to degrees. * The equivalent VBA function is VBA.COS * For the Microsoft documentation refer to support.microsoft.com * For the Google documentation refer to support.google.com |
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1 - What is the cosine of 0 radians. 2 - What is the cosine of 0.5 radians. 3 - What is the cosine if 1 radian. 4 - What is the cosine of (PI/2) radians. 5 - What is the cosine of 2.5 radians. 6 - What is the cosine of PI radians. 7 - What is the cosine of -0.5 radians. 8 - What is the cosine of -1 radian. 9 - What is the cosine of (-PI/2) radians. 10 - What is the cosine of -2.5 radians. 11 - What is the cosine of -PI radians. 12 - What is the cosine of 45 degrees. 13 - What is the cosine of 60 degrees. 14 - What is the cosine of 90 degrees. 15 - What is the cosine of 120 degrees. 16 - What is the cosine of 180 degrees. 17 - What is the cosine of 360 degrees. |
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