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Describe the process of a binary search.

A binary search requires a ordered list. The search first finds the data entry in the middle of the list, and checks whether it is larger or smaller than the data it is looking for. It then removed half t...

MT
Answered by Michael T. Computing tutor
3303 Views

Describe a queue data structure.

A queue is a FIFO (First In First Out) data structure.
Analogous to a production line, the first item in the list will be the first to be removed, the second the second and so on.

MT
Answered by Michael T. Computing tutor
2987 Views

Describe a stack data structure.

A stack is a LIFO (Last In First Out) data structure. 
Analogous to a stack of plates, every new data entry is placed (or pushed) onto the top of the stack, and to get the the data below it, you must...

MT
Answered by Michael T. Computing tutor
3643 Views

∫ log(x) dx

Using "Integration by parts" or "reverse chain rule" .
Recall formula for intergration by parts: "∫f'(x) g(x) dx = f(x)g(x) - ∫f(x)g'(x)dx"
Then set f'(x) = 1, g(x)...

MT
Answered by Michael T. Maths tutor
48847 Views

Differentiate f(x) = 2xlnx.

Use the chain rule: f'(x) = v(du/dx) +u(dv/dx).

Let u = 2x, du/dx = 2, v = lnx, dv/dx = 1/x

Using this information: f'(x) = 2lnx + 2x/x

This simplifies to f'(x...

TV
Answered by Tom V. Maths tutor
22155 Views

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