Because I'm not using .net 4 I can't use StringLength.MinimumLength property. What is alternative? I suppose I should write regular expression: [Required] [RegularExpression("", ErrorMessage = "Minimum 3 characters")] public string Password { get; set; } Thanks, Ile ...
double x; cin>>x; if( x > 1.7976931348623157e+308 || x < -1.7976931348623157e+308 ) { cout<<"value not in range"<<endl; exit(1); } Is there like a DOUBLE_MAX or DOUBLE_MIN and would I need to include any header files? ...
Hello, I have an undirected, unweighted graph, which doesn't have to be planar. I also have a subset of graph's nodes (true subset) and I need to find a node not belonging to the subset, with minimum sum of distances to all nodes in the subset. So far, I have implemented breath-first search starting from each node in the subset, and th...
I am studying for an exam and one of the sample questions is as follows: Vertex cover: a vertex cover in a graph is a set of vertices such that each edge has at least one of its two end points in this set. Minimum vertex cover: a MINIMUM vertex cover in a graph is a vertex cover that has the smallest number of vertices among all possib...
Hi, Given some positive-weighted directed graph, I'd like to find a cheapest set of edges s.t. 1. The set of vertices is a spanning tree, i.e. all vertices are present in the final graph 2. Every vertex is reachable from any other vertex through a directed path (transitive closure??) 3. Set of edges has the minimum cost Essentially, I ...
How can I know the (row, column) index of the minimum of a numpy array/matrix? For example, if A = array([[1, 2], [3, 0]]), I want to get (1, 1) Thanks! ...
If I have a Python dictionary, how do I get the key to the entry which contains the minimum value? I was thinking about something to do with the min() function... Given the input: {320:1, 321:0, 322:3} It would return 321. Any ideas? Thanks! ...
Quick newbie MySQL question. What would be the simplest way to ensure that the minimum value of a given field is 0? Basically, we have a script that runs automatically and subtracts an integer value from the value of a field every 15 minutes--but we want any entry that gets to 0 to stay at 0 and not go negative. This could be simply d...
Is there R solver function similar to solve.QP but for non linear constraints? Also, is there another generic solver for cubic or higher degree contraints and minimum/maximum functions? ...
how would one go about finding the minimum value in an array of 100 floats in python? I have tried minindex=darr.argmin() and print darr[minindex] with import numpy (darr is the name of the array) but i get: minindex=darr.argmin() AttributeError: 'list' object has no attribute 'argmin' what might be the problem? is there a better alte...
hey guys, this is very confusing... i am trying to find the minimum of an array by: for xpre in range(100): #used pre because I am using vapor pressures with some x molarity xvalue=xarray[xpre] for ppre in range(100): #same as xpre but vapor pressures for pure water, p pvalue=parray[p] d=math...
Simply put! there is this list say LST = [[12,1],[23,2],[16,3],[12,4],[14,5]] and i want to get all the minimum elements of this list according to its first element of the inside list. So for the above example the answer would be [12,1] and [12,4]. Is there any typical way in python of doing this? Thanking you in advance. ...
Hi I have a Crystal Report set up to run with my windows forms application. I am passing a string to the SelectionFormula of the report. What I am doing is: I have 3 tables - StockFile, BranchFile and Supplier A Stock item is created when that item is added to branch stock, an item can be moved around branches until it is sold, so c...
Given the following code from a Microsoft example: public class EngineMeasurementCollection : Collection<EngineMeasurement> { public EngineMeasurementCollection() { Add(new EngineMeasurement { Speed = 1000, Torque = 100, Power = 20 }); Add(new EngineMeasurement { Speed = 2000, Torque = 160, Power = 60 }); ...
I'm reviewing a python exercise which does the following : reads list of numbers til "done" gets entered. When "done" is inputted, print largest and smallest of the numbers. And it should be without directly using the built-in functions, max() and min(). Here is my source. Traceback says, "'float' object is not iterable" I think my...
Hi, in short: How to find min value in a list? (thanks for the advise kaarel) long story: I have created a weighted graph in amzi prolog and given 2 nodes, I am able to retrieve a list of paths. However, I need to find the minimum value in this path but am unable to traverse the list to do this. May I please seek your advise on how t...