I have a program where I deal with a lot of very small numbers (towards the lower end of the Double limits).
In PHP, I know we shouldn\'t do math on floats without things like bcmath, but is the mere act of casting a string to float destructive?
开发者_JAVA技巧This question already has answers here: Is floating point math broken? (31 answers)
Every time I start a new project an开发者_Python百科d when I need to compare some float or double variables I write the code like this one:
Im running into some issues with floating point arithmetic not being accurate. I\'m trying to calculate a score based on a weighted formula where every input variable weighs about as much as 20 times
I got surprised when I debugged my code. Here I provide example code 开发者_如何学编程#include<QMessageBox>
I\'m working on porting the sqrt function (for 64-bit doubles) from fdlibm to a model-checker tool I\'m using at the moment (cbmc).
I would like to kn开发者_开发百科ow a good way of checking if a number x is a rational (two integers n,m exist so that x=n/m) in python.
I noticed that when I store a double value such as e.g. x = 0.56657011973046234 in an sqlite database, and then retrieve it later, I get y = 0.56657011973046201. According to the sqlite spec and the .
I\'m trying to solve the following real-life problem you might have encountered yourselves: You had dinner with some friends and you all agreed to split the bill evenly. Except that when the bill fin
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