Asked at Jump Trading
Theory: Quant Python That Survives ReviewRead the problem, hints and solution here. The editor needs a bigger screen: open this page on a laptop to write and run your code.
xxx xxxxx xx x xxxxxxxx xxxx xxxx x xxx xxxxx xxxx xxx xxxxxx xxxx xxx xxxxxx. xx xxxxxxxx xxxxxx x xxxxxxx xxxxxxx, xxx xxxx xxxxxxx xxxx xxx x.x.x. xxxxxxxxxxx xxxx xxxx ( xxxxxx ), xxx x xxxxxxxxx-xxxxxxxx xxxxxxxxx xxxxxxxx xxxx xxx xx xxxxxxxx xxxx xxxx xxxx xxx xxx xxxxxxxxxx.
xxxxxxxxx xxx_xxx(xxxxxxx_xxxxx).
xxxxxxx_xxxxx xx x xxx-xxxxx xxxx xx xxxxxxxx xxxxxxxxxx xxxxxxxx
xxxxxx: xxx xxxxx xx xxxxx xxxx xxxxxxx xxx xxxxxxxx, xxxxxxxx xxxx x.xxxxxx x xxxxx (xxx, xxxxxx):
xxx: xxx xxxxxxx-xxxxxxxxxx xxxxxxxx xx xxx xxxx, xxxxxxx xx x
xxxxxxxx.xxxxxx: xxx xxx-xxxxxxxxxx xx xxx xxxx xxxxxxxxx xx xxxx xxxxxxxx,
xxxxxxx xx x xxxxxxxx.xxxxxx xxx xxxxxxxxx xxxxxx xxxx xxxxxxxx xx. xxx xxxxxxxxxx xx xxx ( x ) xxxxxxxx xxxx ( x_x, xxxx, x_x ) (xxx xxxxx xxx xxxx xxxx x xx xxx xxxxx xxxxxxx) xx ( xxxx_x xxxxxx x^{-xxxxxx x_x} ), xxx xxx xxxx xxx xx xxx xxxx xxxxxxx xxxx.
xxx_xxx([x.x, x.x, x.x])
# (x.xx, -x.xxx)
xxx_xxx([x.x])
# (x.x, -x.xxxx)
xx xxx xxxxx xxxxxxx xxxxx xxxxxxxx xxxxxx xxxx xxxxx xx xxxx, xx xxx xxxx xxxxxxxx xx ( x/x ).
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