Hello.

I find buf for sine and cosine functions.

Ex.) sin(2*pi)=-2.4492170e-16
cos(3/2*pi)=-1.83690e-16

Check please.

Thanks in advanced.

Wrote

sin(2*pi)=-2.4492170e-16

There is no bug: sin(2pi)=0

I agree with DHKIM about this is a bug.



For example, it invalidate my favorite integer question function:



which I use from Derive for DOS, who knows the exact answer:



Best regards.

Alvaro.

Wrote

I agree with DHKIM about this is a bug.

.
This situation is common in many more types of result.
There should be a work sheet option to assign mathematical '0'.
Long time ago, I claimed for this option.