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What is causing this ActiveRecord::ReadOnlyRecord error?
...ior question, which was answered. I actually discovered I could remove a join from that query, so now the working query is
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Combined area of overlapping circles
I recently came across a problem where I had four circles (midpoints and radius) and had to calculate the area of the union of these circles.
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Create an instance of a class from a string
Is there a way to create an instance of a class based on the fact I know the name of the class at runtime. Basically I would have the name of the class in a string.
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Recover unsaved SQL query scripts
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Posting this in case if somebody stumbles into same problem.
Googled for Retrieve unsaved Scripts and found a solution.
Run the following select script. It provides a list of scripts and its time of execution in the last 24 hou...
Getting the caller function name inside another function in Python? [duplicate]
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You can use the inspect module to get the info you want. Its stack method returns a list of frame records.
For Python 2 each frame record is a list. The third element in each record is the caller name. What you want is this:
>>> ...
Shortest distance between a point and a line segment
I need a basic function to find the shortest distance between a point and a line segment. Feel free to write the solution in any language you want; I can translate it into what I'm using (Javascript).
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Assigning a variable NaN in python without numpy
... can use to assign a variable the value NaN. Can python do this without using numpy?
6 Answers
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what is the use of xsi:schemaLocation?
I see that we have multiple url's as value of this attribute like in spring:
4 Answers
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When to use Task.Delay, when to use Thread.Sleep?
...current thread.
Use Task.Delay when you want a logical delay without blocking the current thread.
Efficiency should not be a paramount concern with these methods. Their primary real-world use is as retry timers for I/O operations, which are on the order of seconds rather than milliseconds.
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Using TortoiseSVN via the command line
I want to use commandline SVN options. I use TortoiseSVN, and I run several commands and I get the following error.
12 Answ...