Method on @infsup: Y = powrev2 (A, C, Y)

Method on @infsup: Y = powrev2 (A, C)

Compute the reverse power function for the second parameter.

That is, an enclosure of all y ∈ Y where pow (a, y) ∈ C for any a ∈ A.

Accuracy: The result is a valid enclosure.

powrev2 (infsup (2, 5), infsup (3, 6))
  ⇒ ans ⊂ [0.6826, 2.585]

See also: @infsup/pow.

Package: interval