I have written the following program:

Program distance
Implicit NONE
Real :: x1, x2, y1, y2
write(*,*) "Enter the x coordinate of your fisrt point:"
read(*,*) x1
write(*,*) "Enter the y coordinate of your first point:"
read(*,*) y1
write(*,*) "Enter the x coordinate of your second point:"
read(*,*) x2
write(*,*) "Enter the y coordinate of your second point:"
read(*,*) y2
write(*,*) SQRT((x2-x1)^2 + (y2-y1)^2)

end program distance

When i try to compile it i get this error message:

write(*,*) SQRT((x2-x1)^2 + (y2-y1)^2)
1
Error: Syntax error in argument list at (1)

Can anyone tell me what is wrong with this?

9/14/2009 1:29:35 PM

Quote :

""Enter the x coordinate of your fisrt point:""

there's ya problem

9/14/2009 1:39:54 PM

^ should be **

9/14/2009 1:45:55 PM

Fortran doesn't take ^ for exponentiation, you have to use **.


I realized, after clicking "reply to topic" that sarijoul was telling you this, and not adding to qntmfred's mockery of you.

lolz and apologies to sarijoul, gg

[Edited on September 14, 2009 at 6:25 PM. Reason : ]

9/14/2009 6:24:57 PM