Originally posted by: end495

Hi,

When i tried to write the code below, i took following error. Can you help me to solve it? Thank you.

//Entity set:
int NbRawGasoline=4;
range Raw=1..NbRawGasoline;

int NbFuelType=3;
range Fuel=1..NbFuelType;

//Parameters:
int o[Raw]=[68,86,91,99];
int a[Raw]=[4000,5050,7100,4300];
float p[Raw]=[31.02,33.15,36.35,38.75];
int m[Fuel]=[95,90,85];
float s[Fuel]=[42.15,42.95,40.99];

//Decision Variables:
dvar float t[Raw];
dvar float x[Raw][Fuel];
dvar float y[Fuel];
dvar float z[Raw];

//Objective Function:
Maximize sum(j in Fuel)s[j]*y[j]-sum(i in Raw)p[i]*t[i]+(36.85-p[1])*z[1]+(36.85-p[2]*z[2]+(38.95-p[3])*z[3]+(38.95-p[4])*z[4];

syntax error, unexpected sum, expecting (identifier) or '['

Originally posted by: end495

When i write Maximize's M in lower case it's fixed. But when i write this:

maximize sum(j in Fuel)s[j]*y[j]-sum(i in Raw)p[i]*t[i]+(36.85-p[1])*z[1]+(36.85-p[2]*z[2]+(38.95-p[3])*z[3]+(38.95-p[4])*z[4];

Following error occurs:

syntax error, unexpected ';' 

That means the interpreter saw the semicolon before the statement was complete. Check your closing parentheses.