#NEWLINE# def f2( self , z , * params ) : #NEWLINE# #INDENT# ( x , y ) = a #NEWLINE# ( a , b , c , d , e , f , g , h , i , j , k , l , scale ) = params #NEWLINE# return ( ( - g ) * np . exp ( ( ( - ( ( ( x - h ) ** 2 ) + ( ( y - i ) ** 2 ) ) ) / scale ) ) )