Appearance
$$ H = \frac{\int_{0}^{T} e^{(a\cdot t)} , dt \cdot \left(\sum_{n=1}^{N} c_n \cdot f_n\right)}{\sqrt{\left(\sum_{i=1}^{I} g_i^2\right) \cdot \left(\prod_{j=1}^{J} h_j\right)}} $$