C#, Operator '*' cannot be applied to operands of type 'double' and 'decimal'

Question

This error should be a simple one but I cant seem to make it work. The problem lies in the fact that this very same code works earlier in the program. I don\'s see any reaso

Answer 1

In this line here:

z = (xy)(.8 * 1.732050808m);

you specify .8 as a literal, but without the 'm' suffix, the literal specifies a double.

z = (xy)(.8m * 1.732050808m);

will fix it.