Symbol d_i

Its job in the formula

$d_i$ is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

Where the article explains it

Let an unchecked latent error at stage i create expected downstream loss $L_i$ , a check cost $K_i$ , detection probability $d_i$ , and false-alarm cost $F_i$ .

Learn the underlying idea

A subscript is a label attached below a symbol. It often selects a time step, component, category, or member of a sequence.

Open the illustrated subscripts: which member of a family? guide →