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How to round up a number in Javascript?
...000000000) / precision. You will get a fraction 0.015900001. Need to add a range validation for precision.
– Frank
Dec 24 '17 at 1:00
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See my work log in jira
...Daywise" report that lets you see hows logged by you for a particular time range, giving just what the original poster requested.
– ewitkows
May 1 '18 at 1:56
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Controlling mouse with Python
...l mouse using win32api:
import win32api
import time
import math
for i in range(500):
x = int(500+math.sin(math.pi*i/100)*500)
y = int(500+math.cos(i)*100)
win32api.SetCursorPos((x,y))
time.sleep(.01)
A click using ctypes:
import ctypes
# see http://msdn.microsoft.com/en-us/libr...
How to read contacts on Android 2.0
...ract.CommonDataKinds.Note.NOTE };
String where = ContactsContract.Data.RAW_CONTACT_ID + " = ? AND " + ContactsContract.Data.MIMETYPE + " = ?";
String[] whereParameters = new String[]{Long.toString(contactId), ContactsContract.CommonDataKinds.Note.CONTENT_ITEM_TYPE};
Cursor contacts = get...
Histogram Matplotlib
...m collections import Counter
_, bins = np.histogram(data, bins='auto', range=(data.min(), data.max()), density=False)
h = Counter(np.digitize(data,bins) - 1)
weights = np.asarray(list(h.values()))
weights = weights / weights.sum()
values = np.asarray(list(h.keys()))
return w...
How do function pointers in C work?
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@ajay It looks like he's writing raw hexidecimal values (for instance '\x00' is the same as '/0', they're both equal to 0) into a string, then casting the string into a C function pointer, then executing the C function pointer because he's the devil.
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Scala Doubles, and Precision
... math.round(x*m) / m
}
}
This is about 10x faster if you're within the range of Long (i.e 18 digits), so you can round at anywhere between 10^18 and 10^-18.
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Print newline in PHP in single quotes
... parse the \n as a new line character and print that result
We're in the range of millionths of a second, but there IS a difference in performance. I would recommend you to use single quotes whenever possible, even knowing you won't be able to perceive this performance increase. But I'm a paranoid...
Image Segmentation using Mean Shift explained
... words:
Action:replaces each pixel with the mean of the pixels in a range-r neighborhood and whose value is within a distance d.
The Mean Shift takes usually 3 inputs:
A distance function for measuring distances between pixels. Usually the Euclidean distance, but any other well defined d...
List of all special characters that need to be escaped in a regex
... Unescaped - within [] may not always work since it is used to define ranges. It's safer to escape it. For example, the patterns [-] and [-)] match the string - but not with [(-)].
– Kenston Choi
Sep 12 '16 at 5:28
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