Reverse | Reconstructs BRep Surfaces from mesh points | Image Editing library

This is very likely a code generation bug of MSVC related to pointers to multidimensional arrays: The std::reverse_iterator::operator*() hidden in the range-based loop is essentially doing a *--p, where p is a pointer type to an int[4] pointing to the end of the array. Decrementing and dereferencing in a single statement causes MSVC to load the address of the local variable p instead of the address of the previous element pointed to by the decremented p, essentially resulting in the address of the local variable p being returned.

You can observe the problem better in the following standalone example (https://godbolt.org/z/x9q5M74Md):

Your split splits the list in two ordered halves, so merge consumes its first argument first and then just produces the second half in full. In other words it is equivalent to ++, doing redundant comparisons on the first half which always turn out to be True.

In the true mergesort the merge actually does twice the work on random data because the two parts are not ordered.

The split though spends some work on the partitioning whereas an online bottom-up mergesort would spend no work there at all. But the built-in sort tries to detect ordered runs in the input, and apparently that extra work is not negligible.

The original code can be re-written in the following way:

First of All, Yes you can do this with high accuracy if the GPS coordinates are accurate.

Second, the main problem is rotation if the field are straight with lat lng lines this would be easy and straightforward (no bun intended).

The easy way is to convert coordinate to rotated image similar to the real field then rotated every X,Y point to the new straight image. (see the image below)

Here is how to rotate x,y knowing the angel:

This is an interesting problem. The short answer: Yes, it's possible. But I don't see a way around hard coding the position of table and legend, which is ugly.

The suggestion below requires hard coding in three places. I am using {ggpubr} for the table, and {cowplot} for the stitching.

Another problem arises from the legend key spacing for vertical legends. This is still a rather unresolved issue for other keys than polygons, to my knowledge. The associated GitHub issue is closed The legend spacing is not a problem any more. Ask teunbrand, and he knows the answer.

Some other relevant comments in the code.

Here is a sample code to output what you need. I use the formula below to calculate pct change. percentage_change = 100*(new-old)/old

If old is 0 it is changed to 1 to avoid division by zero error.

The test you have written is also testing the Django framework logic (ie: Django admin login). I recommend testing your own functionality, which occurs after login to the Django admin. Django's testing framework offers a helper for logging into the admin, client.login. This allows you to focus on testing your own business logic/not need to maintain internal django authentication business logic tests, which may change release to release.

It took me some time to find the monad, and since it is not related to List, I figured I'd post an answer.

The expression reverse >>= (==) implies the type of reverse is m a, for some monad m, hence m a is the type [c] -> [c]. We also need isPalindromeM to have type [c] -> Bool, and the bind expression implies m b is identical to [c] -> Bool. Finally this context requires (==) :: [c] -> [c] -> Bool to have the type a -> m b.

Therefore we deduce a is [c] and b is Bool, and the monad m takes a type a and sends it to the function type [c] -> a. This suggests the monad at play is Monad ((->) [c]). defined here

If there's some moral to the story, perhaps it's "you can make a monad out of anything".

You're basically correct. Prefix function application (what you called the "space operator") binds more tightly than any infix operator does. And for completeness, the way to fix the error is to do (reverse . take 3) [1 .. 10] or reverse . take 3 $ [1 .. 10] instead.