8.4.9 CDbl Function

Returns an expression that has been converted to a Variant of subtype Double.
Syntax
CDbl(expression)
Arguments
- expression
- Any valid expression.
Remarks
In general, you can document your code using the subtype conversion functions to show that the result of some operation should be expressed as a particular data type rather than the default data type. For example, use CDbl or CSng to force double-precision or single-precision arithmetic in cases where currency or integer arithmetic normally would occur.
Use the CDbl function to provide internationally aware conversions from any other data type to a Double subtype. For example, different decimal separators and thousands separators are properly recognized depending on the locale setting of your system.
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