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Tutor profile: Ankur D.

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Ankur D.
Software Engineer Intern at Google
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Questions

Subject: Linear Algebra

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Question:

Can two bases for the same vector space have a different number of vectors?

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Ankur D.
Answer:

No. The "basis" with more vectors must be linearly dependent and thus not a basis.

Subject: Java Programming

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Question:

What is the purpose of an interface?

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Ankur D.
Answer:

An interface describes a general contract to which a class must adhere when implementing the interface. For example, there could be many different types of car that all implement the same car interface which could involve methods such as turn() and accelerate().

Subject: Computer Science (General)

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Question:

What is a lower bound time complexity on a comparison based sorting methods?

Inactive
Ankur D.
Answer:

O(nlogn) which is achieved by algorithms such as mergesort and heapsort.

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