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promise already under evaluation: recursive default argument reference or earlier problems?
...instances where they occur we get:
f <- function(x, T) {
10 * sin(0.3 * x) * sin(1.3 * x^2) + 0.001 * x^3 + 0.2 * x + 80
}
g <- function(x, T, f. = f) { ## 1. note f.
exp(-f.(x)/T)
}
test<- function(g. = g, T = 1) { ## 2. note g.
g.(1,T)
}
test()
## [1] 8.560335e-37
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How to get last items of a list in Python?
...re's an example using the python CLI interpreter:
>>> a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]
>>> a
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]
>>> a[-9:]
[4, 5, 6, 7, 8, 9, 10, 11, 12]
the important line is a[-9:]
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C++ include and import difference
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Head GeekHead Geek
32.5k2020 gold badges7272 silver badges8282 bronze badges
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Specifying Maven's local repository location as a CLI parameter
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3 Answers
3
Active
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Base64 Decoding in iOS 7+
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439
Swift 3+
let plainString = "foo"
Encoding
let plainData = plainString.data(using: .utf8)
le...
In Vim, how do I apply a macro to a set of lines?
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368
Use the normal command in Ex mode to execute the macro on multiple/all lines:
Execute the mac...
New Line on PHP CLI
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34
The use of PHP_EOL should be the preferred method of adding new lines.
– AutomaticPixel
Feb 15 '12 a...
How to enable Ad Hoc Distributed Queries
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edited Jan 27 '13 at 4:16
Aaron Bertrand
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How would I get a cron job to run every 30 minutes?
I'm looking to add a crontab entry to execute a script every 30 minutes, on the hour and 30 minutes past the hour or something close. I have the following, but it doesn't seem to run on 0.
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