Which means an application preserves the orientation? For example:
1) Linear transformation $T:\mathbb{R}^{2} \rightarrow \mathbb{R}^{2}$ preserves orientation in $\mathbb{R}^{2}$.
2) $f:\mathbb{C} \rightarrow \mathbb{C}$ preserves orientation.
application preserves the orientation
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linear-algebra
complex-analysis
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0I'd guess it means they preserve angles – 2017-01-09
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2http://mathworld.wolfram.com/Orientation-Preserving.html – 2017-01-09