isinf.m

来自「Interval Arithmetic Toolbox for Matlab」· M 代码 · 共 23 行

function info = isinf(a)

%ISINF (interval) returns whether a given interval contains +/- Inf.
%
%b4m - datatype interval    Version 1.02    (c) 22.10.1998 Jens Zemke
%
%   DESCRIPTION:
%     'isinf' is called
%
%         info = isinf(a)
%
%     and returns the value one if the interval
%     a contains any +/- Inf.
%
%     The operations on the datatype interval
%     are based on BIAS by Olaf Knueppel.
%
%   SEE ALSO:
%     interval: isempty, isnan.
%     double: isinf.

info = isinf(inf(a)) | isinf(sup(a));