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# Richard Fisher

### OPTI-NUM solutions

19 total contributions since 2016

Software and algorithm developer

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One track five lanes
Find the minimum number of lane changes necessary to cross the entire track without running into any obstacles <<http://www.a...

9 Monate ago

Solved

The sliding puzzle: 3D
This is an extension of <https://www.mathworks.com/matlabcentral/cody/problems/42842 problem 42842>. In this case, the puzzle is...

fast 3 Jahre ago

Solved

The sliding puzzle: 15
If you are unfamiliar with the sliding puzzle, enter the command _fifteen_ in your MATLAB command window (or search online, of c...

fast 3 Jahre ago

Solved

Tautology
Check if the given expression is always true. For example, the sentence '~(A & B) == (~A | ~B)' is always true. Chara...

fast 3 Jahre ago

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Pandigital Multiples of 11 (based on Project Euler 491)
A "Pandigital number of order X" is one that contains all of the numbers from 0 to X, but with no leading zeroes. If X>9, the c...

fast 3 Jahre ago

Solved

Five steps to enlightenment
This problem asks you to identify valid variations of the famous <https://en.wikipedia.org/wiki/Sum_and_Product_Puzzle sum and p...

fast 3 Jahre ago

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Five-dimensional maze
*Description* The traditional maze is 2-dimensional: the navigator can move in the positive or negative directions along two ...

fast 3 Jahre ago

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Give the Shortest Path Through The Maze
*Description* The purpose of this problem is to give the shortest path through a maze. The maze will be provided in a codifie...

fast 3 Jahre ago

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Digit concentration in Champernowne's constant
Consider the first 50 digits of Champernowne's constant 0.12345678910111213141516171819202122232425262728293... The...

fast 3 Jahre ago

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"Cody" * 5 == "CodyCodyCodyCodyCody"
*Alice*: What? *"Cody" * 5 == "CodyCodyCodyCodyCody"*? You've gotta be kidding me! *Bob*: No, I am serious! Python supports...

fast 3 Jahre ago

Solved

The 5th Root
Write a function to find the 5th root of a number. It sounds easy, but the typical functions are not allowed (see the test su...

fast 3 Jahre ago

Solved

Energy of a photon
Given the frequency F of a photon in giga hertz. Find energy E of this photon in giga electron volts. Assume h, Planck's ...

fast 3 Jahre ago

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How to subtract?
* Imagine you need to subtract a few numbers using MATLAB. * You will not be using eval for this task. * Given two ASCII strin...

fast 3 Jahre ago

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Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

etwa 3 Jahre ago

this program is producing a STBC matrix of 8*4 32 times. how can i put them in a single matrix of 256*4 dimension??
There is another end missing from you code. Assuming it should be added at the end, try changing: SS = reshape(T(:,:,j),8,4...

mehr als 3 Jahre ago | 0

| accepted

Question

How can I create shortcuts to layouts
I've created several custom layouts, which I want to access via shortcut, rather than selecting HOME > Layout > CustomLayout on ...

fast 4 Jahre ago | 2 answers | 0

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Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

fast 4 Jahre ago

interpolate only between columns
I think you're looking for interp1, which can be used to interpolate for a number of functions(columns in a matrix) in one pass....

fast 4 Jahre ago | 1

| accepted