Code: Select all

```
MODULE Triangle_Operations
IMPLICIT NONE
CONTAINS
FUNCTION Area(x,y,z)
REAL :: Area ! function type
REAL, INTENT( IN ) :: x, y, z
REAL :: theta, height
theta=ACOS((x**2+y**2-z**2)/(2.0*x*y))
height=x*SIN(theta); Area=0.5*y*height
END FUNCTION Area
END MODULE Triangle_Operations
PROGRAM Triangle
USE Triangle_Operations
IMPLICIT NONE
REAL :: a, b, c, Area
PRINT*, 'Welcome, please enter the&
&lengths of the 3 sides.'
READ*, a, b, c
PRINT*,'Triangle''s area: ',Area(a,b,c)
END PROGRAM Triangle
```

operable program or batch file when I try to compile.

I got the same error with few other testing fortran codes.

Can anyone help here.