error 141 symbol declared

Problems with syntax of GAMS
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seydaseyda
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error 141 symbol declared

Post by seydaseyda »

Hi guys

I have a problem with symbol declaration. I could not understand what is the problem.

Code: Select all


sets
i /1*10/;
alias(i,j);

sets
k /1*10/;

binary variable
x(i) 
y(k) ;

parameter
a(i) x-coordinate of x(i)  /
$call xls2gms r=a2:b11 i=sample.xlsx o=koordinatx.inc
$include koordinatx.inc
/;


parameter
b(i) y-coordinate of x(i) /
$call xls2gms r=e2:f11 i=sample.xlsx o=koordinaty.inc
$include koordinaty.inc
/;


parameter
d1(k) x-coordinate of y(k)  /
$call xls2gms r=j2:k11 i=sample.xlsx o=koordinatx.inc
$include koordinatx.inc
/;


parameter
d2(k) y-coordinate of y(k) /
$call xls2gms r=n2:o11 i=sample.xlsx o=koordinaty.inc
$include koordinaty.inc
/;

parameter
c(i,k) distance between i and k;
c(i,k)= sqrt(power((a(i)-d1(k)),2)+power((b(i)-d2(k)),2));


parameter
spr(i,k);
spr(i,k)= (1 / power(c(i,k),3))*y.l(k);

It gives an error for y.l(k).

Could you please give me a hand?
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