Definition:Equiangular Spiral/Mistake
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Source Work
2014: Christopher Clapham and James Nicholson: The Concise Oxford Dictionary of Mathematics (5th ed.):
- equiangular spiral
Mistake
- The equation can be written $r = k \theta + b$
Correction
This should read:
- The equation can be written $\ln r = k \theta + b$
In the $6$th edition, the expression has been corrected to:
- $r = a e^{k \theta}$
which is an equivalent form.
Sources
- 2014: Christopher Clapham and James Nicholson: The Concise Oxford Dictionary of Mathematics (5th ed.) ... (previous) ... (next): equiangular spiral