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 Compile error: variables not declared

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T O P I C    R E V I E W
wqchenntu Posted - 03/18/2018 : 11:43:38 PM
Hi, I was trying to follow the instruction on "fitting with an ordinary differential equation". But I always encounter the compiling error of "Variable "struct user
{
double a;
}" not declared" .

What may cause this error? Thanks.
1   L A T E S T    R E P L I E S    (Newest First)
yuki_wu Posted - 03/19/2018 : 03:07:35 AM
Hi,

Did you follow this tutorial? I tried it on my machine and everything works as expected. Did you include these lines before you define the static function?

struct user // parameter in the ODE
{
double a;
};

Also, you can double-click the red error message to go to the line that error exists.

Regards,
Yuki
OriginLab

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