On 17/12/2022 11:51, Paul St George wrote: > I have a large/long array of numbers in an external file. The numbers look > like this: > > -64550.727 > -64511.489 > -64393.637 > -64196.763 > -63920.2
> When I bring the numbers into my code, they are Strings. To use the > numbers in my code, I want to change the Strings to Float type > because the code will not work with Strings but I do not want > to change the numbers in any other way. That may be impossible. Float type is not exact and the conversion will be the closest binary representation of your decimal number. It will be very close but it may be slightly different when you print it, for example. (You can usually deal with that by using string formatting features.) Another option is to use the decimal numeric type. That has other compromises associated with it but, if retaining absolute decimal accuracy is your primary goal, it might suit you better. -- 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
