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Strange behaviour of the pow function


Strange behaviour of the pow function

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Strange behaviour of the pow function
Tag : c , By : merten
Date : November 24 2020, 05:47 AM


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Strange php behaviour on a gd function


Tag : php , By : JSebok
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , Could it be that the reference to the variable $res disappears after the function call? Have you tried declaring it as a class variable, just like the $_resource variable?

Strange behaviour of cut function


Tag : r , By : Mistere
Date : March 29 2020, 07:55 AM
hop of those help? Your problems have nothing to do with cut and more to do with the ifelse and apply functions.
ifelse only returns a result that is the same length as the input so when you do
ifelse(T, cut(x, 3), T)
 If ‘X’ is not an array but an object of a class with a non-null
 ‘dim’ value (such as a data frame), ‘apply’ attempts to coerce it
 to an array via ‘as.matrix’ if it is two-dimensional (e.g., a data
 frame) or via ‘as.array’.
parab[] <- lapply(parab, function(x) if(is.numeric(x)) cut(x, 3) else x)

cpp strange behaviour in this function


Tag : cpp , By : chorn
Date : March 29 2020, 07:55 AM
this one helps. I am trying to write a function that calculates the gap heursitic. Below is my code: ,
for (int i = 0; i < state_string.length(); i++)
{
    // ...
    cout << state_string.at(i) << "\t" << state_string.at(i + 1) << endl;
}
for (int i = 0; i < state_string.length() - 1; i++)

gcc strange behaviour on abs function


Tag : cpp , By : user106284
Date : March 29 2020, 07:55 AM
will be helpful for those in need I think you are looking for the compiler option -Wfloat-conversion or, more general, -Wconversion. Then g++ gives me this warning:
 warning: conversion to ‘int’ from ‘double’ may alter its value [-Wfloat-conversion]
     double diff = abs(r1-r2);

Strange behaviour of PHP strtotime function


Tag : php , By : CookingCoder
Date : March 29 2020, 07:55 AM
it fixes the issue It's not a bug, but it's not exactly intuitive.
2018-03-31 minus one month is the 31st of February, which doesn't exist. PHP's implementation of strtotime deals with any "out of range" dates like these by moving into the next month by the relevant number of days, e.g.
echo date('Y-m-d', strtotime('April 31'));
// 2018-05-01
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