24.16.4 Harmonic conjugate
The
harmonic_conjugate
command finds harmonic conjugates.
harmonic_conjugate
takes three arguments:
P
1
,
P
2
,
P
3
, three collinear points or three concurrent lines, or three parallel lines.
harmonic_conjugate(
P
1
,
P
2
,
P
3
)
returns and draws the harmonic conjugate of
P
1
,
P
2
and
P
3
.
Examples
A
:=
point
(
i
);
B
:=
point
(2+
i
);
C
:=
point
(1/3+
i
);
D
:=
harmonic_conjugate
(
A
,
B
,
C
)
evalc
(
affix
(
D
))
−
1
2
+
i
harmonic_conjugate
(
line
(0,1+
i
),
line
(0,3+
i
),
line
(0,
i
))