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| -rw-r--r-- | Doc/library/cmath.rst | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/Doc/library/cmath.rst b/Doc/library/cmath.rst index 4469573ccf..2c1f1cfab5 100644 --- a/Doc/library/cmath.rst +++ b/Doc/library/cmath.rst @@ -28,15 +28,15 @@ Complex coordinates Complex numbers can be expressed by two important coordinate systems. Python's :class:`complex` type uses rectangular coordinates where a number -on the complex plain is defined by two floats, the real part and the imaginary +on the complex plane is defined by two floats, the real part and the imaginary part. Definition:: z = x + 1j * y - x := real(z) - y := imag(z) + x := z.real + y := z.imag In engineering the polar coordinate system is popular for complex numbers. In polar coordinates a complex number is defined by the radius *r* and the phase @@ -216,7 +216,7 @@ The module also defines two mathematical constants: .. data:: pi - The mathematical constant *pi*, as a float. + The mathematical constant *π*, as a float. .. data:: e |