Sum of elementwise exponentials of an affine expression.
Let be an -dimensional real affine expression.
If no additional expression is given, this is the sum of elementwise exponentials
If an additional affine expression of same shape as is given, this is the sum of elementwise perspectives of exponentials
When you pose an upper bound on a sum of elementwise exponentials, then PICOS enforces through an auxiliary constraint during solution search. When an additional expression is given, PICOS enforces as well.
The logarithm of the expression.
The expression .