Shouldn't the sin of pi be zero?

           1 o. 1p1
        1.22461e_16

This isn't a tolerance issue, because 1.22461e_16 isn't even tolerantly equal to 0 :

           0 = 1 o. 1p1
        0

But maybe it's a precision issue w.r.t. 1p1 ? But, then, shoudn't J's internal trigonometric functions recognize J's internal representation of pi?

-Dan

PS:  Similar questions apply for other trigonometric functions, e.g.:

           2 o. _0.5p1
        6.12303e_17

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