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Focal cloud

A focal cloud is the collection of focal points of any imperfect lens, whether optical, electrostatic or electromagnetic. This includes parabolic… 
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Papers overview

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2020
2020
AutomatedTeller Machine (ATM) is one broadly preferred choice for money withdrawal for consumers. Getting an ATM with required… 
2014
2014
In this paper, we study B-focal curves of biharmonic B -general helices according to Bishop frame in the Heisenberg group Heis… 
2013
2013
192 Autobiographical Statement 195 
1975
1975
While FOCAL has become a commonplace calculational language in many small computer laboratories, the use of FOCAL as an…