Square Root Error in Windows calc?

Please do the following.

1) square root of 4
2) which gives you 2, then subtract 2.
3) which should give you 0 but it gives something else and totally wrong!


You're right!  It gives an answer of -1.068281969439142e-19, which is -0.0000000000000000001068281969439142.  That's a really small number, but it should be 0.   You've found a bug in Calc.

Boulder Computer Maven
Microsoft Most Valuable Professional
Steve Winograd

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Last updated March 16, 2023 Views 39 Applies to: