On 14/01/2021 17:44, Denys Contant wrote: > I don't understand why sqrt is not a built-in function. > Why do we have to first import the function from the math module? > I use it ALL THE TIME!
because pow() is a builtin function and root = pow(x,0.5) is the same as root = math.sqrt(x) As is root = x ** 0.5 which is also builtin. My question is: why do we even have a sqrt() in the math module given that pow() and ** are already there? -- Alan G Author of the Learn to Program web site http://www.alan-g.me.uk/ http://www.amazon.com/author/alan_gauld Follow my photo-blog on Flickr at: http://www.flickr.com/photos/alangauldphotos -- https://mail.python.org/mailman/listinfo/python-list
