MATLAB: Exponential and Binary Search Algorithm

binaryfunctionMATLABsearching

Hello, So I tried to convert a cpp program that uses exponential search and binary search. I am however getting errors within the code for MATLAB, I do not understand where I have gone wrong.

I have a main file here: PasteBin Main

Here is the function for exponential search: expo search function

This is the binary search: binary search

The errors I am getting are in the binary search function at line 4, the exponential function at line 13 and the main file at line 10. The only thing I can think of is I am not passing the information across the functions correctly?

I hope what I have done doesn't hurt your eyes too badly!

Best Answer

Your code:

function [ array, N, mini, target ] = binarySearch( array, N, mini, target)
mid = ((bound + mini) / 2);

The 2nd line fails, because "bound" is not defined here. This should appear in the error message also.

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MATLAB: Debugging help for the exponential search code below

It does exactly what it does. There is no problem that we can see, since we have no idea what it is supposed to do. Is the goal to return an error message, probably that no function or variable named binSearch exists?

When you have a problem with code, tell us what the error that is returned. Otherwise, we need to guess.

I might point out that there is NO binSearch function provided. Nothing with that name, yet you call it repeatedly. Interestingly, there is a function named binarySearch. Perhaps you were just being lazy. But it would seem this is an obvious flaw, unless of course, you have some code named binSearch somewhere on your search path.

MATLAB: Using google on matlab web browser

You need to generate the complete url from matlab and then pass that to web(url). After a brief testing, the format for google search is

https://www.google.com/search?q=cats+and+dogs

url = ['www.google.com/search?q=' search_target];

in search target, different words should be separated by '+', as this is how google works. You can check that yourself by searching something in google and looking at the url

Examples:

This only looks for cats:

search_target = 'cats';
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This looks for food recommendations for cats:

search_target = 'food+recomendations+for+cats';
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About introducing the "+" between words, you will need to distinguish between the different words that are part of the question and then add that between them.

Best Answer

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