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Modulus problem

Nancy Antony
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Posts: 145
Java Linux Oracle
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System.out.println(-9+"%"+-7+"="+-9%-7); // result -2

System.out.println(-7.6+"%"+-2.9+"="+7.6%2.9);// 1.7999999999999998

double d=-7.6;
double e=-2.9;
double f=d%e;

I understand that sign of result is of left operand, but when both operands are negative real numbers, result is +ve. Why?
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