scalar

For numpy.ndarray subclass, ufunc outputs have the same type. This is good in general but I would like for ufunc with scalar output to return scalar type (such as numpy.float64 ). Example: import numpy as np class MyArray(np.ndarray): def __new__(cls, array): obj = np.asarray(array).view(cls) return obj a = MyArray(np.arange(5)) a*2 # MyArray([0, 2, 4, 6, 8]) => same class as original (i.e. MyArray), ok a.sum() # MyArray(10) => same as original, but here I'd expect np.int64 type(2*a) is type(a.sum()) # True b = a.view(np.ndarray) type(2*b) is type(b.sum()) # False For standard numpy array,

I am trying to read data from a table. This table have a list of table name. for each row of the data set I want to run a couple of queries to pull data and insert it into a temporary table. Here is What I have done DECLARE @campName varchar(255); DECLARE @sqlCommand varchar(1000); DECLARE @sqlCommandMySQL varchar(1000); DECLARE @LastRun varchar(60); DECLARE @OPENQUERY varchar(1000); DECLARE MY_CURSOR CURSOR LOCAL STATIC READ_ONLY FORWARD_ONLY FOR SELECT LTRIM(RTRIM(CallListName)) AS CallListName FROM [SMSQL1].[RDI_System].[dbo].[Campaigns] WHERE dialer_campaign = 1 AND i3Server ='I3New' AND

In Robot Framework, we can assign a list to a Scalar Variable or to a List Variable, as shown below: | @{list} = | Create List | a | b | c | | ${scalar} = | Create List | a | b | c | What is the difference between a List Variable and a Scalar Variable containing a list? Bryan Oakley In case of the assignment shown in your question, there is no difference. If you log each of those you'll get the exact same output. Note : this functionality was introduced in version 2.8 (see Using scalar variables as lists in Robot Framework User's Guide). The difference comes when you use the values. When you

I have been trying to achieve something which should pretty trivial and is trivial in Matlab . I want to simply achieve something such as: cv::Mat sample = [4 5 6; 4 2 5; 1 4 2]; sample = 5*sample; After which sample should just be: [20 24 30; 20 10 25; 5 20 10] I have tried scaleAdd , Mul , Multiply and neither allow a scalar multiplier and require a matrix of the same "size and type". In this scenario I could create a Matrix of Ones and then use the scale parameter but that seems so very extraneous Any direct simple method would be great! OpenCV does in fact support multiplication by a

I found an example in an O'Reilly book a little weird: @backwards = reverse qw/ yabba dabba doo /; print "list context: @backwards\n"; $backward = reverse qw/ yabba dabba doo /; print "scalar1 context: $backward\n"; $notbackward = qw/ yabba dabba doo /; print "scalar2 context: $notbackward\n"; print "print context: ",reverse qw/ yabba dabba doo /; print "\n"; The output is: list context: doo dabba yabba scalar1 context: oodabbadabbay scalar2 context: doo print context: doodabbayabba The one I do not understand is the scalar1 context: The book says 'reverse something' gives a list context, so I