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math
This package extends Asymptote
's mathematical capabilities with
point-in-polygon and intersection algorithms and matrix arithmetic.
Unlike MetaPost
, Asymptote
does not implicitly solve
linear equations and therefore does not have the notion of a
whatever
unknown. Use the built-in explicit linear equation
solver solve
instead. The following routine provides a useful
replacement for a common use of whatever
: finding the
intersection point of the lines through P
, Q
and
p
, q
, respectively:
pair extension(pair P, pair Q, pair p, pair q);
Here are some additional routines provided in the math
package:
void drawline(picture pic=currentpicture, pair P, pair Q, pen p=currentpen);
P
and Q
, without altering the size of picture pic
,
using pen p
.
real intersect(triple P, triple Q, triple n, triple Z);
PQ
with the plane perpendicular to n
and passing through Z
.
triple intersectionpoint(triple n0, triple P0, triple n1, triple P1);
n0
and n1
passing through points P0
and P1
,
respectively. If the planes are parallel, return
(infinity,infinity,infinity)
.
bool straight(path p)
true
iff the path p
is straight.