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| pi | Examples See Also |
Ratio of a circle's circumference to its diameter,
Syntax
pi
Description
pi
returns the floating-point number nearest the value of . The expressions 4*atan(1) and imag(log(-1)) provide the same value.
Examples
The expressionsin(pi) is not exactly zero because pi is not exactly :
sin(pi) ans = 1.2246e-16
See Also
ans, eps, i, Inf, j, NaN