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Now, (x != 42) which is false yields 0 OK so far. so I have expected to get in console "-42" No. As you say, the expression evolves: (x == 42) * -1 + (x != 42) * x (1) * -1 + (0) * x...
Answer
#3: Post edited
by
Olin Lathrop
·
2022-05-01T12:25:47Z (over 2 years ago)
- <blockquote>Now, (x != 42) which is false yields 0</blockquote>
- OK so far.
- <blockquote>so I have expected to get in console "-42"</blockquote>
- No. As you say, the expression evolves:
- <pre>
- (x == 42) * -1 + (x != 42) * x
(1) * -1 + (0) * x-1 + 0- </pre>
- Negative one plus zero is negative one.
- <blockquote>Now, (x != 42) which is false yields 0</blockquote>
- OK so far.
- <blockquote>so I have expected to get in console "-42"</blockquote>
- No. As you say, the expression evolves:
- <pre>
- (x == 42) * -1 + (x != 42) * x
- (1) * -1 + (0) * x
- -1 + 0
- </pre>
- Negative one plus zero is negative one.
#2: Post edited
by
Olin Lathrop
·
2022-05-01T12:25:05Z (over 2 years ago)
- <blockquote>Now, (x != 42) which is false yields 0</blockquote>
- OK so far.
- <blockquote>so I have expected to get in console "-42"</blockquote>
- No. As you say, the expression evolves:
- <pre>
- (x == 42) * -1 + (x != 42) * x
(0) * -1 + (0) * x- -1 + 0
- </pre>
- Negative one plus zero is negative one.
- <blockquote>Now, (x != 42) which is false yields 0</blockquote>
- OK so far.
- <blockquote>so I have expected to get in console "-42"</blockquote>
- No. As you say, the expression evolves:
- <pre>
- (x == 42) * -1 + (x != 42) * x
- (1) * -1 + (0) * x
- -1 + 0
- </pre>
- Negative one plus zero is negative one.
#1: Initial revision
by
Olin Lathrop
·
2022-05-01T12:24:45Z (over 2 years ago)
<blockquote>Now, (x != 42) which is false yields 0</blockquote>
OK so far.
<blockquote>so I have expected to get in console "-42"</blockquote>
No. As you say, the expression evolves:
<pre>
(x == 42) * -1 + (x != 42) * x
(0) * -1 + (0) * x
-1 + 0
</pre>
Negative one plus zero is negative one.