BUG in Windows Calc [modified]

[Hiren solanki]

Follow the procedure click '4' click 'sqrt' click '-'(Minus sign) click '2' Answer should be 0 But It comes back with '-8.1648465955514287168521180122928e-39' answer ;P [Edit] Tested with XP and Seven _[/More Edit] Windows Server 2008 R2 comes same with yet another answer '-1.068281969439142e-19' _[/More Edit] [/Edit]

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"You will always find me near 127.0.0.1"

modified on Monday, November 1, 2010 7:00 AM

[Abhinav S]

Yup confirmed - happening on Windows 7.

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[leppie]

Another fails the knowledge about floating point.... When will they ever learn????? Edit: It seems to happen with any rounding around 0. If your result is not 0, the result is correctly rounded, but with values very near 0, it simply 'forgets'.... Edit 2: Press = again, the answer will be -2 as expected confirming the previous value is not rounded correctly, but still good enough due to its 'smallness' (e-39 is very small).

((λ (x) `(,x ',x)) '(λ (x) `(,x ',x)))

modified on Monday, November 1, 2010 7:07 AM

[Mario Luis]

Lol , too much time on your hands but cool :D

[Keith Barrow]

Sheesh, it's about right, whaddaya want, accuracy :-)

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[Dalek Dave]

Hiren Solanki wrote:

Answer should be 0

Or -4!

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[thatraja]

I have seen this in Win-XP here before, but I thought it would be solved in Windows 7, but it's terrible that still exists in Windows 7

thatraja |Chennai|India|

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[riced]

Hiren Solanki wrote:

But It comes back with '-8.1648465955514287168521180122928e-39

Or -0.00000000000000000000000000000000000000081648465955514287168521180122928 in real numbers :laugh: Oops - missed the leading 0.

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[Dalek Dave]

It is very close to zero.

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[CPallini]

Well, actually close to... :)

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[Bassam Abdul Baki]

The Windows PowerToy Calc is slightly better.

Sqrt(4) - 2 = 3.9378992339362513964719291444358459196643504626684867133312775132667336556050866493546387304075566414818330038038295060147049046413138657775207384487209999618622897470743768272532233306387808895650314543995525529065482320548203801311885605071904357825187703782014895108614888708459734293476714554362468810447809428975260776308251921152998341440712577547187250299521717400700236027297480547576700432251758684242034663903791398932294256110257450914185948984125441052563042008394844537793781156975099171360793772881e-532

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[NMehta83]

Follow the procedure click '4' click 'sqrt' click '-'(Minus sign) click '2' ('-8.1648465955514287168521180122928e-39') click '+' click '2' Answer should be 2 and It shows 2 only :~

NMehta83 “We cannot fail until we fail to try”

[Hiren solanki]

It's hard to give you 5 . :laugh:

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Hiren Solanki.
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"You will always find me near 127.0.0.1"

[Dalek Dave]

Give him a 4.958468546513654646854968435146814612321687 instead.

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[NMehta83]

For this answer i will give you +5 :laugh:

NMehta83 “We cannot fail until we fail to try”

[Bassam Abdul Baki]

Clicking the 5 is hard for you?

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[Hiren solanki]

It takes half and hour to reach to rating link. :laugh:

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Hiren Solanki.
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"You will always find me near 127.0.0.1"

[Dalek Dave]

Amd yet you haven't!

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[Hiren solanki]

NMehta83 wrote:

i will give you +5

It's 10 minute already, still not deposited :laugh:

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Hiren Solanki.
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"You will always find me near 127.0.0.1"

[NMehta83]

Now have my another +5 :laugh:

NMehta83 “We cannot fail until we fail to try”