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Talk:Check Machin-like formulas: Difference between revisions
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:::: Ah, that Zig-Zag explanation! For me it's an RC classic. One of the better bits of RC and its community that I remember fondly. Thanks again DanBron. --[[User:Paddy3118|Paddy3118]] 05:10, 22 December 2012 (UTC)
::::: Yes, that was a fun one. Good times, good times. Happy holidays Paddy3118, and to all my other RosettaComrades! --[[User:DanBron|DanBron]] 18:23, 22 December 2012 (UTC)
== Task is wrong ==
Proving that ''tan(x)=1'' is by no means a proof that ''x=pi/4''.
Thus, the sentence
''Verify the following Machin-like formulas are correct by calculating the value of tan(right hand side) for each equation using exact arithmetic and showing they equal 1:''
is just painfully wrong: this is '''not''' a verification that the equations are '''correct''', only that the RHS computes ''pi/4 + k pi'', for some unknown integer ''k''.
[[User:Arbautjc|Arbautjc]] ([[User talk:Arbautjc|talk]]) 10:39, 30 April 2015 (UTC)
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