Name
Acos Function
Class
System.Math
Syntax
Math.Acos(d
)
-
d
Use: Required
Data Type: Double or any valid numeric expression
A cosine, which is a number greater than or equal to -1 and less than or equal to 1
Return Value
A Double between 0 and pi that is the arccosine of
d
in radians
Description
Returns the arccosine of d
in radians
Rules at a Glance
If
d
is out of range (less than -1 or greater than 1),Acos
returnsNaN
.This is a Shared member, so it can be used without creating any objects.
Programming Tips and Gotchas
To convert from radians to degrees, multiply by 180/pi.
VB .NET/VB 6 Differences
The Acos
function did not exist in VB 6.
See Also
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