newRPL - Updated to build 1510 [official build remains at 1487]
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08-07-2021, 02:20 PM
Post: #155
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RE: newRPL - Updated to build 1487 [ including official build]
(08-07-2021 01:13 PM)Wes Loewer Wrote: 1. I noticed a bug on the ATAN function when used with complex arguments. For instance, « (3,2) ATAN » should return (1.338972522294.,0.146946666226.) but instead returns (1.338972522294.,0.402359478109.) I could be mistaken, but I think the problem can be traced back to an algebraic error which fortunately is shown clearly in the comments above the code. See lib-66-transcendentals.c, lines 1444-1445 Code: // Denominator = (1-im^2) - (i*re)^2 The code that follows seems consistent with this comment. However, if I'm not mistaken, I think that should have been Code: // Denominator = (1-im)^2 - (i*re)^2 which changes the final result. |
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