test_run cacsd zp2ss and zp2tf fail
Reported by Stéphane MOTTELET (@mottelet)
BUG DESCRIPTION:
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test_run cacsd zp2ss, zp2tf, zpk fail
ERROR LOG:
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zp2ss: Wrong value for input argument #1: complex zeros must appear in complex conjugate pairs.
...
HOW TO REPRODUCE THE BUG:
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exec SCI/modules/cacsd/tests/unit_tests/zp2ss.tst
exec SCI/modules/cacsd/tests/unit_tests/zp2tf.tst
exec SCI/modules/cacsd/tests/unit_tests/zpk.tst
OTHER INFORMATION:
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See also the related bug #15734