Difference between revisions of "Documentation/How Tos/Calc: ACOS function"
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: returns <tt>'''60'''</tt>. The cosine of <tt>'''60'''</tt> degrees is <tt>'''0.5'''</tt>. | : returns <tt>'''60'''</tt>. The cosine of <tt>'''60'''</tt> degrees is <tt>'''0.5'''</tt>. | ||
| − | + | {{Documentation/SeeAlso| | |
| − | + | * [[Documentation/How_Tos/Calc: COS function|COS]] | |
| − | + | * [[Documentation/How_Tos/Calc: SIN function|SIN]] | |
| − | + | * [[Documentation/How_Tos/Calc: TAN function|TAN]] | |
| − | + | * [[Documentation/How_Tos/Calc: COT function|COT]] | |
| − | + | * [[Documentation/How_Tos/Calc: ASIN function|ASIN]] | |
| − | + | * [[Documentation/How_Tos/Calc: ATAN function|ATAN]] | |
| − | + | * [[Documentation/How_Tos/Calc: ATAN2 function|ATAN2]] | |
| − | + | * [[Documentation/How_Tos/Calc: ACOT function|ACOT]]''' | |
| − | + | * [[Documentation/How_Tos/Calc: DEGREES function|DEGREES]] | |
| − | + | * [[Documentation/How_Tos/Calc: PI function|PI]]''' | |
| − | + | * [[Documentation/How_Tos/Calc: Mathematical functions|Mathematical functions]]''' | |
| − | [[Documentation/How_Tos/Calc: Functions listed alphabetically| | + | * [[Documentation/How_Tos/Calc: Functions listed alphabetically|Functions listed alphabetically]], |
| − | [[Documentation/How_Tos/Calc: Functions listed by category| | + | * [[Documentation/How_Tos/Calc: Functions listed by category|Functions listed by category]]}} |
Revision as of 13:23, 25 February 2009
ACOS
Returns the inverse cosine (the arccosine) of a number.
Syntax:
ACOS(number)
- returns the inverse trigonometric cosine of number, in other words the angle (in radians) whose cosine is number. The angle returned is between 0 and PI.
- To return the angle in degrees, use the DEGREES function.
Example:
ACOS(-1)
- returns 3.14159265358979 (PI radians).
DEGREES(ACOS(0.5))
- returns 60. The cosine of 60 degrees is 0.5.
