Background
A utility of particular interest to Cody and other MATLAB ventures is comparing the equality of two numbers. In computing, numbers can be stored in a number of ways, but they all share the trait of being stored as a binary number. As such, the equals operator in MATLAB is checking the bits of one stored number against the bits of another stored number. In this problem, I ask that we move away from this binary representation and comparison of numbers back into the decimal domain.
Problem
Write a function that takes a character input that represents a number that we wish to compare against, n1, and a double input that represents the other number, n2. Output true if the numbers are equal to the precision of n1.
Example
n1 = '12.3456'
n2 = 12.3456
output = true
n1 = '12.34567432'
n2 = 12.3456
output = false
Solution Stats
Problem Comments
4 Comments
Solution Comments
Show comments
Loading...
Problem Recent Solvers260
Suggested Problems
-
String substitution, sub problem to cryptoMath
244 Solvers
-
Find nearest prime number less than input number
1017 Solvers
-
Cell Counting: How Many Draws?
2396 Solvers
-
Output any real number that is neither positive nor negative
410 Solvers
-
5087 Solvers
More from this Author56
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
It is not getting clear why '12.3456' and 12.3456789 should be accepted as equal.
the second test in the test suite is incorrect, it should be a negative assertion.
Yes, I completely agree with the other comments. The second test case is incorrect. '12.3456' is not equal to 12.3456789 which when rounded off to 4 decimal places becomes 12.3457
The 50 solvers yet (as of 26/03/19) are undeserving of their title as 'Solvers'.
The test case has been corrected.