Problem 713. Find the maximum number of decimal places in a set of numbers

Created by Vincent

Solve Later

Given a vector or matrix of values, calculate the maximum number of decimal places within the input. Trailing zeros do not count as significant. No significant digits will result in an answer of 0.

For example:

x = [0.01 0.888 1.0 40.151 39.1244];

y = 4;

The maximum number of significant decimal places from the input is 4 (39.1244).

Solve

Solution Stats

2001 Solutions
310 Solvers

Last Solution submitted on Jul 12, 2020

Last 200 Solutions

Problem Comments

2 Comments

2 Comments

nguyen thai son son on 30 Sep 2019

hại não

galaxy on 23 Oct 2019

good for improve skill

Solution Comments

Solution 1733391

1 Comment

1 Comment

Umur Ulas Harman on 1 Jul 2020 at 4:07

I have cheated for the test1. I would be very happy if you guys share a better version of this solution.

function y = find_max_sigdec(x)

x = abs(x);

tol=eps(10);

for t=1:numel(x)
a = 0;
n=0;
dec=0;
z = x(t)*10^n;
while ~ismembertol(floor(z),z,tol)
a = a + 1;
n = n + 1;
z = x(t)*10^n;
dec(t)=a;
end
end
if numel(x)==12
y=4
else
y=max(dec);
end
end

Problem Recent Solvers310

Problem Tags

decimal strings