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| pi | Examples See Also |
Ratio of a circle's circumference to its diameter,
pi
pi
returns the floating-point number nearest the value of . The expressions 4*atan(1) and imag(log(-1)) provide the same value.
The expression sin(pi) is not exactly zero because pi is not exactly :
sin(pi) ans = 1.2246e-16
ans The most recent answer
eps Floating-point relative accuracy
i Imaginary unit
Inf Infinity
j Imaginary unit
NaN Not-a-Number