Re: [問卦] chatgpt: 9.11-9.9 = 0.21?

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calculate math 9.11-9.9 is?

ChatGPT 說：
The result of
9.11
9.9
9.11.9 is:

9.11
9.9
=
0.79
9.11.9=-.79

//另一段

I mean 9.11 - 9.9 = -0.79 but now 9.11 - 9.9 = 0.21
maybe it's not decimal maybe some situation can you list?

ChatGPT 說：
Ah, I get it now! You're asking for scenarios where the result of
9.11
9.9
9.11.9 could change from
0.79
.79 to
0.21
0.21, which might not involve decimal arithmetic. Here's a list of
possibilities where such a situation could occur:

1. Modulo Arithmetic
In modular arithmetic, results "wrap around" after reaching a certain value.
For example:

If we are working in modulo
1
1,
9.11
9.11 becomes
0.11
0.11 and
9.9
9.9 becomes
0.9
0.9.
Subtraction
0.11
0.9
0.11.9 in modulo
1
1 gives
0.21
0.21 (wrapping back around).
2. Custom Number Systems or Scales
The subtraction is performed in a non-decimal number system, such as:

Base-12 (duodecimal): Numbers in different bases can yield results that don'talign with decimal subtraction.
Arbitrary scale adjustment: For example,
9.11
9.11 and
9.9
9.9 are values scaled by a factor or offset, changing the subtraction outcome.3. Signed vs. Unsigned Interpretation
If the numbers are stored as signed vs. unsigned integers in computer systems:

9.11
9.9
9.11.9 could behave differently depending on how the system interprets
values.
Overflow or underflow in unsigned subtraction could result in a different
outcome.
4. Error Correction or Adjustment Factor
The calculation might include a hidden correction factor or adjustment:

Some systems might add a constant adjustment to ensure positive results.
For example, a constant
+
1
+1 correction:
(
9.11
9.9
)
+
1
=
0.21
(9.11.9)+1=0.21
5. Quantum or Probabilistic Systems
In quantum computing or probabilistic algorithms:

Subtraction results might not be deterministic, allowing
9.11
9.9
9.11.9 to
0.21
0.21 in
6. Time-Based Context
In specific contexts like timestamps:

9.11
9.11 and ( 9.9
9.9
9.9 might represent
7. Measurement Errors or Bias
In physical systems, results could change due to:

Mea
Bi

//
9.11 - 9.9 = -0.79 but now 9.11 - 9.9 = 0.21
maybe it's not decimal maybe some situation can you list?
ChatGPT 說：
Great catch! If
9.11
9.9
=
0.21
9.11.9=0.21, then the numbers might not be in decimal form. Let's explore
potential scenarios where this could make sense:

1. Base Systems (Non-Decimal)
Base 10 (Decimal):
9.11
9.9
=
0.79
9.11.9=.79, as calculated initially.
Base 12 (Duodecimal):
9.11
9.11 and
9.9
9.9 are interpreted in base 12.
9.11
12
=
9
+
1
12
+
1
144
9.11
12
=9+
12
1
+
144
1

9.9
12
=
9
+
9
12
9.9
12
=9+
12
9

Subtraction could yield
0.21
0.21 when converted to base 10.
2. Time Format (Hours and Minutes)
Hours and Minutes:
9.11
9.11 could mean 9 hours and 11 minutes.
9.9
9.9 could mean 9 hours and 90 minutes (or 10 hours and 30 minutes).
Subtracting
9
:
11
10
:
30
9:110:30 might give you
0
:
21
0:21 (21 minutes).
3. Measurement Systems
If
9.11
9.11 and
9.9
9.9 are part of a measurement system with specific units or rounding
conventions, the difference might result in
0.21
0.21.
4. Financial Rounding or Precision
In accounting or financial settings, numbers might be rounded or truncated
based on significant figures, giving a result of
0.21
0.21.

//
是我們想得太簡單 不見得AI有錯!!!

※ 引述《bengowa (鞭狗蛙 舒服)》之銘言：
: 乳題啦
: 我剛剛看到有人PO文說
: 如果你去問chatgpt一個簡單的減法問題
: 9.11-9.9=?
: 他會跟你說0.21
: 我本來想說 幹怎麼可能
: 結果測試後真的是這樣
: https://imgur.com/6cQOyFC.jpg

本版不缺 稻草人論證 99.99% 都如此 不見得AI有錯!!! -> 「AI沒有錯!(笑)」 某問:支持妓女有權做生意嗎? 我回:支持! -> 你一定去嫖過妓

這裡有簡易版的gpt, bert chatbot model 稍微懂一點也就了解AI問題出在那了