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adding noise to a signal in python
... python, you can either
1. Calculate variance based on a desired SNR and a set of existing measurements, which would work if you expect your measurements to have fairly consistent amplitude values.
2. Alternatively, you could set noise power to a known level to match something like receiver noise. R...
When to make a type non-movable in C++11?
...opy. You can't rip the guts out of an int, you can copy its value and then set it to zero, but it's still an int with a value, it's just bytes of memory. But an int is still movable in the language terms because a copy is a valid move operation. For non-copyable types however, if you don't want to ...
How to get the path of current worksheet in VBA?
...k.path. If it's a workbook being opened, the name should be defined with a set, then application.Variablename.path (or fullpath, depending).
– Selkie
Oct 19 '17 at 22:36
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C# vs C - Big performance difference
... happens to match the native operation mode of the FPU and SSE instruction set on x86 and x64 processors. No coincidence there. The JITter compiles Math.Sqrt() to a few inline instructions.
Native C/C++ is saddled with years of backwards compatibility. The /fp:precise, /fp:fast and /fp:strict co...
I want to copy table contained from one database and insert onto another database table
...s does not copy things such as index. It merely creates a table based on a set of tuples. You probably don't want to do this.
– BenMQ
Aug 26 '14 at 3:59
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How to remove array element in mongodb?
...ove the phone +1786543589455 from its contact.phone array.
You can use $unset to unset the value in the array (set it to null), but not to remove it completely.
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What does the 'L' in front a string mean in C++?
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It's a wchar_t literal, for extended character set. Wikipedia has a little discussion on this topic, and c++ examples.
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ZSH iterm2 increase number of lines history
...ather looking for this in the preferences > Advanced tab, and I found a setting "Terminal > Maximum number of lines to expose to Accessibility" Changing this one didn't work, and I'm not really sure what's the difference ?
– Cyril Duchon-Doris
Oct 19 '16...
What are type lambdas in Scala and what are their benefits?
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(1, 2).map(a => a + 1) // (1, 3)
If you use IntelliJ, you can enable Settings, Code Style, Scala, Folding, Type Lambdas. This then hides the crufty parts of the syntax, and presents the more palatable:
Functor[[a]=(Int, a)].map((1, 2))(a => a + 1)) // (1, 3)
A future version of Scala mig...
Remove textarea inner shadow on Mobile Safari (iPhone)
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Setting either background and border css properties of the input tag also seems to work.
Try this:
<style>
input {
background: #ccc;
border: none;
}
</style>
<form>
First name: <input type="tex...