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Divide a number by 3 without using *, /, +, -, % operators
... because:
n = 4 * a + b
n / 3 = a + (a + b) / 3
So sum += a, n = a + b, and iterate
When a == 0 (n < 4), sum += floor(n / 3); i.e. 1, if n == 3, else 0
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What is the strict aliasing rule?
... ability to give aliasing warnings, sometimes giving us a friendly warning and sometimes not.)
To see why this behavior is undefined, we have to think about what the strict aliasing rule buys the compiler. Basically, with this rule, it doesn't have to think about inserting instructions to refresh th...
Detect if value is number in MySQL
... FROM myTable WHERE concat('',col1 * 1) = col1
It doesn't work for non-standard numbers like
1e4
1.2e5
123. (trailing decimal)
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multi-layer perceptron (MLP) architecture: criteria for choosing number of hidden layers and size of
...ayer.But what is the criteria for choosing number of hidden layer in a MLP and how many neural nodes in 1 hidden layer?
4 A...
Generating random numbers in Objective-C
I'm a Java head mainly, and I want a way to generate a pseudo-random number between 0 and 74. In Java I would use the method:
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AngularJS best practices for module declaration?
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'Best' way to declare a module
As angular is on the global scope itself and modules are saved to its variable you can access modules via angular.module('mymod'):
// one file
// NOTE: the immediately invoked function expression
// is used to exemplify different files and is not required
(functio...
Ruby optional parameters
...his method: e.g. If you're trying to make the default value for scope true and you pass in false, scope ||= true won't work. It evaluates the same as nil and will set it to true
– Joshua Pinter
Nov 10 '11 at 5:32
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Sort array of objects by string property value
...are function body: return a.value - b.value; (ASC)
– Andre Figueiredo
Jan 8 '14 at 12:06
23
@Cerb...
getViewTypeCount and getItemViewType methods of ArrayAdapter
Can somebody in plain words explain me the usage of getViewTypeCount() and getItemViewType() methods of ArrayAdapter ?
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How can I combine flexbox and vertical scroll in a full-height app?
...xbox. I found what I want using old flexbox layout module ( display: box; and other things) in this link: CSS3 Flexbox full-height app and overflow
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