Exception for Area of a triangle

\[0.0 \lt a \land 0.0 \lt b \land 0.0 \lt c\]

Math

\[\sqrt{\left(\left(\frac{\left(a + b\right) + c}{2} \cdot \left(\frac{\left(a + b\right) + c}{2} - a\right)\right) \cdot \left(\frac{\left(a + b\right) + c}{2} - b\right)\right) \cdot \left(\frac{\left(a + b\right) + c}{2} - c\right)}\]

C

double code(double a, double b, double c) {
	return sqrt(((((((a + b) + c) / 2.0) * ((((a + b) + c) / 2.0) - a)) * ((((a + b) + c) / 2.0) - b)) * ((((a + b) + c) / 2.0) - c)));
}