MATLAB and Simulink resources for Arduino, LEGO, and Raspberry Pi

Learn moreOpportunities for recent engineering grads.

Apply Today**New to MATLAB?**

**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

30 correct solutions
90 incorrect solutions

Last solution submitted on Mar 11, 2015

1 Comment