- Prove that the set of recursive languages is infinite
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- c# - 00000000000000000000000000000 matches Regex ^[1-9]|0$ - Stack . . .
In Net4 5, I find that the result of System Text RegularExpressions Regex IsMatch( "00000000000000000000000000000", "^[1-9]|0$") is true
- How does conversion from integer to floating-point work?
When converting an integer to a floating point number, it's just shifted until the mantissa is within the right range, i e 1 < m < 2, and the exponent is just how many steps it shifts
- sha1 - Can a SHA-1 hash be all-zeroes? - Stack Overflow
Is there any input that SHA-1 will compute to a hex value of fourty-zeros, i e "0000000000000000000000000000000000000000"?
- Is floating-point math broken? - Stack Overflow
Binary floating point math works like this In most programming languages, it is based on the IEEE 754 standard
- c++ - What does (~0L) mean? - Stack Overflow
0L is a long integer value with all the bits set to zero - that's generally the definition of 0 The ~ means to invert all the bits, which leaves you with a long integer with all the bits set to one
- Why double width = 50 110000; the output is 0. 000000000000000?
Explanation to what's happening: In Java, the default type of numbers is int, so when you write 50 110000, they're both considered int, although you defined the result to be double
- Floating-point arithemtic in C: epsilon comparison
Why do the results after the binary point differ? Because that is the difference Expecting something else comes from thinking 1 0000000001 and 0 0000000001 as double have those 2 values
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