Fix bug with atanh
Fix bug with atanh

marbre/arrayfire,ghisvail/arrayfire,arrayfire/arrayfire,umar456/arrayfire,ghisvail/arrayfire,ghisvail/arrayfire,9prady9/arrayfire,arrayfire/arrayfire,9prady9/arrayfire,munnybearz/arrayfire,shehzan10/arrayfire,merlin-ext/arrayfire,arrayfire/arrayfire,umar456/arrayfire,munnybearz/arrayfire,umar456/arrayfire,merlin-ext/arrayfire,shehzan10/arrayfire,merlin-ext/arrayfire,marbre/arrayfire,ghisvail/arrayfire,umar456/arrayfire,marbre/arrayfire,9prady9/arrayfire,shehzan10/arrayfire,9prady9/arrayfire,merlin-ext/arrayfire,arrayfire/arrayfire,marbre/arrayfire,victorv/arrayfire,shehzan10/arrayfire,victorv/arrayfire,victorv/arrayfire,munnybearz/arrayfire,victorv/arrayfire