Sentence:  The manipulation of the environment through design involves many branches of mathematics: the projective geometry of light transmission, the <WSD>chaotic</WSD> and probabilistic maths of weather patterns, and the statistical algorithms required to make analysis legible and obtain discrete building components from continuous distributions. 
Meaning of the word marked with <WSD> tags:  Highly sensitive to starting conditions, so that a small change to them may yield a very different outcome.