RE: [libreoffice-users] IMPRODUCT() does not work in Calc

The problem was resolved by a sharp-eyed developer on the ooo-user list.

The result of 4 is correct.

2+i2 is 2 (because cell i2 is either empty or 0)

2-i2 is 2 (same reason).

(This is because Calc allows simplified direct references to cells.)

The result is 4.

Try =IMPRODUCT("2+2i";"2-2i");

or =IMPRODUCT(COMPLEX(2,2);COMPLEX(2,-2))

etc.

In OpenFormula, There is no direct notation for complex numbers as a numerical form. Text is used 
to convey the notation in a way that is distinct in those places where complex operands are allowed 
for.  There does not appear to be any reasonable way around this in Calc.

 
-----Original Message-----
From: Jay Lozier [mailto:jslozier@gmail.com] 
Sent: Wednesday, June 06, 2012 20:02
To: users@global.libreoffice.org
Subject: Re: [libreoffice-users] IMPRODUCT() does not work in Calc

On 06/06/2012 10:07 PM, Dan Lewis wrote:
>      IMPRODUCT() is suppose to calculate products of complex numbers.
> However, its answers are not correct: only the real portion of the
> complex numbers seem to be used.
>           =IMPRODUCT(2+i2,2-i2)
>           = 2*2+2*i2-2*i2-i2*i2
>           = 4 +i4 -i4 -(4)          [i2*i2=-4]
>           = 8
> But Calc lists the answer as 4.
>
>      Are there any complex functions that really work other than
> IMREAL()? (It only reads the real part of a complex number.
>
> --Dan
I confirm this result with 3.5.4.2, Ubuntu 12.04

-- 
Jay Lozier
jslozier@gmail.co


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