Math Domain Error In Python

I was testing the math module and pil module and trying to apply a box count algorithm on a image.

Math domain error in python. Math domain error 原因 某些操作不符合数学定义 如对负数取对数 对负数开平方. Python math acos function is used to find arc cosine. So if you make b high for example 9 and a and c low 1 and 2 for example it works its been a while since i used this but looking at this image from wikipedia there are two possible outcomes.

Math domain error that comes while working in python. Learn how to fix valueerror. Its either or you only do.

Math sqrt can t handle a negative value. When i run that code below i get the following error. The cosine of an angle is always in the range 1 0 1 0 so the inverse function is only defined for inputs in that range you re giving acos a value larger than 1.

The math acos function takes a number between 1 to 1 and finds the arc cosine of that number. I tried to find the square root of a negative number while writing a function to solve quadratic equations but the interpreter said something it said math domain error what does this mean.

File c users joao desktop image size py line 48 in module gy append math log boxcount valueerror. Mark dickinson jun 20 15 at 14 29. The function is under the python math library and we have to import the math library before using it.

Traceback most recent call last.