picos.expressions.exp_logarithm¶

Implements Logarithm.

Classes

class picos.expressions.exp_logarithm.Logarithm(x)[source]¶

Logarithm of a scalar affine expression.

For a real scalar affine expression $x$ , this is $\log(x)$ .

Warning

When you pose a lower bound on a logarithm $\log(x)$ , then PICOS enforces $x \geq 0$ through an auxiliary constraint during solution search.

__add__(other)[source]¶: Denote addition with another expression on the right-hand side.

__ge__(other)[source]¶: Return a constraint that the expression is lower-bounded.

__init__(x)[source]¶

Construct a Logarithm.

__mul__(other)[source]¶: Denote multiplication with another expression on the right.

__radd__(other)[source]¶: Denote addition with another expression on the left-hand side.

__rmul__(other)[source]¶: Denote multiplication with another expression on the left.

__sub__(other)[source]¶: Denote subtraction of another expression from the expression.

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