- Thread starter Emy
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Sorry,but i didn't understand what you mean .

Could you explain this trick to me,please?

Does fulfilment of the square means complete the square?

I can get characteristic to univariate ,but the problem in bivariate is there is a term containing (xy) .I can't act with it .It causes a trouble in the integral .

Could you explain this trick to me,please?

Does fulfilment of the square means complete the square?

I can get characteristic to univariate ,but the problem in bivariate is there is a term containing (xy) .I can't act with it .It causes a trouble in the integral .

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