This question already has answers here:
Round a divided number in Bash
(10 answers)
Get ceiling integer from number in linux (BASH)
(16 answers)
Closed 4 years ago.
I need a function that rounds float number to nearest great integer:
# input -> output
14.72 -> 15
14.01 -> 15
14.00 -> 14
How to do this ?
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NEON simple vector assignment intrinsic?
(1 answer)
Converting inline ASM to Intrinsic
(2 answers)
Closed 1 year ago.
I want to duplicate Q2 to Q1, but can't find vmov funciton.
Just found VMOVL, VMOVN.
This question already has answers here:
Java mapToInt vs Reduce with map
(2 answers)
Is there any advantage of calling map after mapToInt, where ever required
(3 answers)
Closed 3 years ago.
Following streams produces the same result however there are two different ways to achieve this.
Person.stream().map(Person::getAge).reduce(Integer::sum).get();
Person.stream().mapToInt( Person::getAge).sum();
I want to know difference among two and which one is better.
This question already has answers here:
ruby floating point errors
(3 answers)
Closed 7 years ago.
30.0 * 0.009 # => 0.26999999999999996
Does anybody know why this is not 0.27?
Any recommendations on what to do about this?
Since you already found materials on the why subject, I will just answer the what to do part of the question. If you absolutely don't want to approximate, you have to use rational numbers:
30 * 0.009r # => (27/100)
This question already has answers here:
How do I pick randomly from an array?
(7 answers)
Closed 8 years ago.
I am trying to understand how to use rand to do this. if there were two players for example player a and player b and the computer had to be one and the human the other. How would i implement this?
[:computer, :player].shuffle.first will give you on random who is first.
This question already has answers here:
Floating point error in representation?
(2 answers)
Closed 9 years ago.
Regarding multiplication, behavior of ruby is that 24.0 * 0.1 is not 2.4. Why does this happen?
24.0 * 0.1
# => 2.4000000000000004
Only very few numbers can be represented precisely in floating point arithmetic.
See http://en.wikipedia.org/wiki/Floating_point for more details.