complex opsignal × cpoints → cpointsimport fullseye as fs; fs.ledger.cplx_poly_eval(coeffs, z) (実装を直接呼ぶなら import mathops; mathops.cplx_poly_eval(coeffs, z)、台帳から引くなら opsmath.get("cplx_poly_eval"))Evaluate a polynomial on the complex plane (Horner, complex-capable).
The complex twin of :func:poly_eval: coeffs is highest-power-first
([c_d, ..., c_1, c_0], possibly complex) and z is a complex scalar or
1-D array. A scalar query returns a Python complex, an array returns
complex128 — mirroring :func:poly_eval’s scalar/array behaviour.
This is what makes the rest of the family usable: sample a polynomial on a
contour from :func:cplx_contour_circle, then count its zeros with
:func:cplx_argument_principle or reconstruct interior values with
:func:cplx_cauchy_value. (:func:poly_eval refuses complex input by
design — silent imaginary-part truncation — so it cannot serve here.)
Raises ValueError: empty/multi-dimensional coeffs, non-finite or
masked input, over-cap size, and — the honest one — a result that
overflowed to Inf/NaN (a degree-200 polynomial on |z| = 10 genuinely
exceeds float64 range; that is refused rather than returned as inf).
HALCON: no complex polynomial operator.
mathops の全 op は入力を検証してから計算する(黙って通さない):
ValueError — float64 への強制変換は虚部を黙って捨てる(numpy は ComplexWarning だけ出して「もっともらしく間違った」実数を返す)。.real/.imag/abs() を明示するか、複素対応の complexops を使う。ValueError — マスクを剥がして下の生値を使う暗黙変換を拒否。埋める/落とすを明示する。ValueError(件数を明示して拒否 — 結果全体に伝播するため)。ValueError。reshape を明示する)。stat_histogram の bins は mathops.MAX_ELEMENTS(2^26 ≈ 6700 万要素)超で ValueError。py -3.11 examples/math_complex.pycpoints を入力に取れる)cplx_contour_integral · cplx_winding_number · cplx_cauchy_value · cplx_argument_principle · cplx_laurent_coeffs · cplx_joukowski · cplx_mobius
complex)cplx_contour_circle · cplx_contour_integral · cplx_winding_number · cplx_cauchy_value · cplx_argument_principle · cplx_laurent_coeffs · cplx_joukowski · cplx_mobius
Provenance: mathops.py — MATH operator registry. この per-op ノートは tools/opdocs.py md が自動生成(手編集しない)。
© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.