Graph of Odd Function is Rotationally Symmetric about Origin
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Theorem
Let $f$ be an odd real function.
Let the graph $G$ of $f$ be presented in a Cartesian plane.
Then $G$ is rotationally symmetric about the origin.
Proof
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Sources
- 1973: G. Stephenson: Mathematical Methods for Science Students (2nd ed.) ... (previous) ... (next): Chapter $1$: Real Numbers and Functions of a Real Variable: $1.3$ Functions of a Real Variable: $\text {(h)}$ Even and Odd Functions