Discover MakerZone

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

Learn more

Discover what MATLAB® can do for your career.

Opportunities for recent engineering grads.

Apply Today

MATLAB Academy

New to MATLAB?

Learn MATLAB today!

Problem 1891. High Precision Square Root (Inspired by Project Euler 80)

Created by James

Given a positive integer n which is not a perfect square, write a MATLAB script that will calculate the square root of n truncated to k places after the decimal point. Your output should be a string. For example, the output of string_sqrt(1000,10) should be '31.6227766016' Notice that the square root of 1000 is (according to MATLAB) 31.62277660168379, so we want the integer part complete, as well as the first k numbers after the decimal point without rounding.

Several of the values of k will be larger than the usual precision shown by MATLAB, so you'll need to be inventive. Good luck.

Problem Group

Solution Statistics

9 correct solutions 5 incorrect solutions
Last solution submitted on Mar 19, 2015