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Closed 11 years ago.
Possible Duplicate:
working on a proj in neural network
Is it mandatory that neural network will only take binary values as an input?
No. They're not even restricted to a binary output, unless you're using a step function for activation.
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How is the square root function implemented? [closed]
(15 answers)
Closed 8 years ago.
How does sqrt function really work ? Does it go by any logical theorem to get the result.
Is there any way i can access the code of libarary function such as sqrt?
You can download the source code from the libc, which is open source: http://www.gnu.org/software/libc/download.html
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Parsing of binary data with scala
(5 answers)
Closed 9 years ago.
I have some binary files which are written by a Java application in the following way:
DataOutputStream dos = new DataOutputStream(new BufferedOutputStream(new FileOutputStream(complete_path_to_file)));
dos.writeInt(aInteger);
dos.writeLong(aLong);
dos.writeFloat(aFloat);
dos.close();
Now, I'd like to read this kind files in a Scala framework but I really don't have any ideas about how to do that.
Could you help me?
Reading it using the same classes and methods you'd use in Java is probably going to be the most error-free, as you have a direct correspondence between read and write.
You can also use Scala I/O, which is the best library for file I/O for Scala -- and a possible addition to the standard library in the future.
Then there's sbinary, where less concern is given to I/O itself, and more concern is given to describing the binary record.
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How does C compute sin() and other math functions?
(22 answers)
Closed 9 years ago.
Anybody can explain or show how is the function "sin" (or "sinf", "sinl") realized in C.
Intuition suggests that it should be somewhere in the math.h but I did not see anything there
There's a couple ways I can think of right off the bat:
Lookup tables
Approximation via Taylor series (which can be easily made accurate to a number of significant digits).
This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
C equivalent of C++ STL
I am writing a program in C due to memory constraints on an embedded system. I need a std::unordered_set<int> to implement my algorithm. What STL-like libraries exist for C? If there isn't one which implements std::unordered_set<int> then what container can I use as an alternative?
sglib red black tree container seems to provide what I need.
This question already has answers here:
Closed 11 years ago.
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Magic numbers of the Linux reboot() system call
I was asked this question in an interview
When using the Linux-specific reboot()
system call to reboot the system, the
second argument, magic2, must be
specified as one of a set of magic
numbers (e.g., LINUX_REBOOT_MAGIC2).
What is the significance of these
numbers?
What is the correct answer to the above question?
The significance of the allowed set of magic2 numbers is that, when expressed in hexadecimal, they represent dates-of-birth (specifically, of Linus Torvalds and his three children).
This really lowers the bar on silly interview questions!