Python math library - Raspberry Pi Forums

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i bought book simon monk called "programming raspberry pi", and
i'm trying learn how programs trig functions , file outputs.
book says math.sin(math.pi/2) return 1.0, example. however,
error indicating math library unknown. ideas i'm
doing wrong?

you missed 1 essential part: have import math module first.

code: select all

import math print math.sin(math.pi/2)


raspberrypi



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