error 542, J appears in the dimension of a variable,yet is not a dummy argument,a variable available through USE or CONTAINS association,a COMMON variable,a PARAMETER,or a PURE FUNCTION(adsbygoogle = window.adsbygoogle || []).push({});

the same error about I

i am using i,j in order to point the temperature in length and time T(i,j)

it is a numerical solution for the heat diffusion equation that uses the previous and the next value according to length of temperature and the previous value of temperature according to time( Crank-Nicolson method)

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# Fortran 95 question about dimension error

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