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Python Guide V1.2.11

# 5238is like 52368 identifiers variables

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Unformatted text preview: • • • • • +,R:!R++R+3 is like R(+(+(R(+3)))) • *,/,//,%:!8!/63!//62!*63!%62!is like! !!!!!!!!!!(((8!/!3)!//!2)!*!3)!%!2 • +,R:!8!/!36*!4!+!R2**4!%!5!is like !!!!((8!/!3)!*!4)!+!((R(2**4))6%!5) • <,<=,!=,==,>=,>,is,in:!! 5!+!2!<!3!*!8!is like (5!+!2)!<!(36*!8) Identifiers • Variables (mixed case) can change value sumOfSquares!=!0.0 • Constants (all uppercase with _ ) should stay fixed: SECS_PER_MIN!=!60 Math functions: dir(math) Assignment import6math!as!m!!#!for!float,!or! import!cmath!as!m!#!for!complex! To avoid "m.": from!math!import!* • m.acos(x) inverse cosine [radians] • m.asin(x),!m.atan(x)!#!similar • m.ceil(x) least integer ≥ x![math only] • m.cos(x)! !cosine of!x!given in radians • m.e 2.718281828459045 x • m.exp(x) e • m.factorial(x) x! [math only] • m.floor(x) biggest int ≤ x![math only] • m.log(x)! !natural log of!x • m.log10(x)! !log base 10 of!x • m.pi! !3.141592653589793 • m.sin(x),!m.tan(x)!#!see!m.cos • m.sqrt(x) square root of x import!random!#!f...
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