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Haversine Formula in Python (Bearing and Distance between two GPS points)
I would like to know how to get the distance and bearing between 2 GPS points .
I have researched on the haversine formula.
Someone told me that I could also find the bearing using the same data.
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How to develop and test an app that sends emails (without filling someone's mailbox with test data)?
I have a lot of apps that send email. Sometimes it's one or two messages at a time. Sometimes it's thousands of messages.
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Is the pImpl idiom really used in practice?
I am reading the book "Exceptional C++" by Herb Sutter, and in that book I have learned about the pImpl idiom. Basically, the idea is to create a structure for the private objects of a class and dynamically allocate them to decrease the compilation time (and also hide the private implementatio...
What is the point of noreturn?
[dcl.attr.noreturn] provides the following example:
5 Answers
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How is the 'use strict' statement interpreted in Node.js? [duplicate]
I have started to explore the Node.js and wrote many demo web application, to understand the flow of Node.js, Express.js, jade, etc..
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FIND_IN_SET() vs IN()
I have 2 tables in my database. One is for orders, and one is for companies.
6 Answers
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What are the most widely used C++ vector/matrix math/linear algebra libraries, and their cost and be
It seems that many projects slowly come upon a need to do matrix math, and fall into the trap of first building some vector classes and slowly adding in functionality until they get caught building a half-assed custom linear algebra library, and depending on it.
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jQuery .val change doesn't change input value
I have an HTML input with a link in the value.
9 Answers
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How do SQL EXISTS statements work?
I'm trying to learn SQL and am having a hard time understanding EXISTS statements. I came across this quote about "exists" and don't understand something:
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Spring MVC: How to perform validation?
I would like to know what is the cleanest and best way to perform form validation of user inputs. I have seen some developers implement org.springframework.validation.Validator . A question about that: I saw it validates a class. Does the class have to be filled manually with the values from the us...