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How to create the perfect OOP application [closed]
... @Narayan: double is ideal for situations where being within 0.00000001% of the right answer is more than enough. If you want to figure out how fast a brick is falling after half a second, do the math in doubles. When you do financial arithemtic in doubles you end up with answers like the pri...
How to extract numbers from a string in Python?
... commas not,500',
['74,600', '500']),
('I like bad math 1+2=.001',
['1', '+2', '.001'])]
for s, r in ss:
rr = re.findall("[-+]?[.]?[\d]+(?:,\d\d\d)*[\.]?\d*(?:[eE][-+]?\d+)?", s)
if rr == r:
print('GOOD')
else:
print('WRONG', rr, 'should be', r)
G...
tinygrad：不到1000行代码的深度学习框架，天才黑客开源GitHub 2.3k+ stars...
...
model = TinyBobNet()
optim = optim.SGD([model.l1, model.l2], lr=0.001)
# ... and complete like pytorch, with (x,y) data
out = model.forward(x)
loss = out.mul(y).mean()
loss.backward()
optim.step()
另外tinygrad也支持GPU：
from tinygrad.tensor import Tensor(Tensor...
Distributed sequence number generation?
...epend that to the sequence number.
For example, node 1 generates sequence 001-00001 001-00002 001-00003 etc. and node 5 generates 005-00001 005-00002
Unique :-)
Alternately if you want some sort of a centralized system, you could consider having your sequence server give out in blocks. This redu...
Pad a string with leading zeros so it's 3 characters long in SQL Server 2008
...sing a custom numeric format string
PRINT FORMAT(@myInt,'00#');
outputs
001
001
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How do I handle newlines in JSON?
...tation mark, reverse solidus, and the control characters (U+0000 through U+001F)." Since a newline is a control character, it must be escaped.
– daniel kullmann
Apr 25 '13 at 10:48
...
Create JSON object dynamically via JavaScript (Without concate strings)
...
JavaScript
var myObj = {
id: "c001",
name: "Hello Test"
}
Result(JSON)
{
"id": "c001",
"name": "Hello Test"
}
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How does the HyperLogLog algorithm work?
...bers (in binary) starts with "1", 25% starts with "01", 12,5% starts with "001". This means that if you observe a random stream and see a "001", there is a higher chance that this stream has a cardinality of 8.
(The prefix "00..1" has no special meaning. It's there just because it's easy to find th...
No secret option provided to Rack::Session::Cookie warning?
...nswered Feb 12 '13 at 10:52
nbit001nbit001
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How can I parse a string with a comma thousand separator to a number?
...oking for: 3,00 € also is replaced to 3.00. Just a note, that 3,001 is formatted to 3001. To avoid this, input should always be with decimal symbols. E.g. 3,001.00€ 3,001.00 converts correctly. Also, please, update jsfiddle. 0,124 there is still converted to 124
–...