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| Author |
HELP: "The number of subscripts is incorrect."
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| Wenbin Hu 2007-04-17, 7:05 pm |
| I'M WRITING A SUBROUTINE TO GENERATE A INITIAL ARRAY:
SUBROUTINE MS(NX,NT)
INTEGER NX I
REAL DX
DIMENSION X(NX,1)
DO I=1,NX
X(I)=I*DX
END DO
END
THE FEEDBACK IS:
Error: The number of subscripts is incorrect. [X]
WHAT'S THE PROBLEM IN THIS PROGRAM? THANKS ALOT
WENBIN
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| > WHAT'S THE PROBLEM IN THIS PROGRAM? THANKS ALOT
The number of subscripts is incorrect.
--
FX
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| > WHAT'S THE PROBLEM IN THIS PROGRAM? THANKS ALOT
The number of subscripts is incorrect (for variable X).
--
FX
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| Wenbin Hu 2007-04-17, 7:05 pm |
| FX wrote:
>
> The number of subscripts is incorrect (for variable X).
>
So, if I wanna express X(I)=I*dX, how to set the subscripts of X?
thanks
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| Rich Townsend 2007-04-17, 7:05 pm |
| Wenbin Hu wrote:
> FX wrote:
> So, if I wanna express X(I)=I*dX, how to set the subscripts of X?
> thanks
Well, you've declared X to be a two-dimensional array. Thus, you need two
subscripts.
cheers,
Rich
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| e p chandler 2007-04-17, 7:05 pm |
| On Apr 17, 12:33 pm, Wenbin Hu <h...@ecn.purdue.edu> wrote:
> I'M WRITING A SUBROUTINE TO GENERATE A INITIAL ARRAY:
>
> SUBROUTINE MS(NX,NT)
> INTEGER NX I
> REAL DX
> DIMENSION X(NX,1)
> DO I=1,NX
> X(I)=I*DX
> END DO
> END
>
> THE FEEDBACK IS:
> Error: The number of subscripts is incorrect. [X]
>
> WHAT'S THE PROBLEM IN THIS PROGRAM? THANKS ALOT
>
> WENBIN
You are declaring a TWO dimensional array at the top. But you are
referencing a ONE dimensional array at the bottom. A ONE dimensional
array has ONE subscript.
So you need to code
DIMENSION X(NX)
In Fortran it is conventional to think of a row vector or a column
vector as one dimensional, not as a 1 row matrix or a 1 column matrix.
HTH
-- elliot
[Obviously tne next version of MIX needs an RPM instruction - "Read
Programmer's Mind"]
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| Beliavsky 2007-04-17, 7:05 pm |
| On Apr 17, 12:33 pm, Wenbin Hu <h...@ecn.purdue.edu> wrote:
> I'M WRITING A SUBROUTINE TO GENERATE A INITIAL ARRAY:
>
> SUBROUTINE MS(NX,NT)
> INTEGER NX I
I think there should be a comma between NX and I. Use IMPLICIT NONE in
all Fortran code.
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