Exponential and Binary Search Algorithm

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!

[Steven Lord]

What are the full texts (all the words displayed in red) of the error messages you receive when you try running this code?

[Henry Migo]

Error in binarySearch (line 3)
mid = ((bound + mini) / 2);

Error in exponentialSearch (line 12)
binarySearch(array, high, mini, target);

Error in exponentialSearchTestHarness (line 10)
        comparisons(searchTarget) = exponentialSearch(array, maxArraySize, searchTarget);

This is the error I get.

[Jan]

This tells where the error is, but the part which explains the cause is still missing.

[Henry Migo]

It gives me nothing more than that. That is everything that comes up in the error box.

[Jan]

What is "the error box"?

[Henry Migo]

The command window at the bottom I assume?

Answer 1

[Jan]

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.

[Henry Migo]

ahh thank you, I'll see what I can do to fix it

[Joe Blogs]

I have a very similiar problem, what steps did you take to resolve the issue?

[Marcin Ciepiel]

Hey Hey, anyone has any idea how can we fix that code? I was struggling for like 6 hours to make it work, but I don't understand what should we put there

[yong wei lin]

anyone know how to fix that code