Cody

# Problem 1411. Number of lattice points within a circle

Solution 227099

Submitted on 4 Apr 2013 by Tim
• Size: 27
• This is the leading solution.
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### Test Suite

Test Status Code Input and Output
1   Pass
%% assert(isequal(within_circle(1),5))

2   Pass
%% assert(isequal(within_circle(3),9))

3   Pass
%% assert(isequal(within_circle(20),69))

4   Pass
%% assert(isequal(within_circle(45),145))

5   Pass
%% assert(isequal(within_circle(55),177))

6   Pass
%% assert(isequal(within_circle(500),1581))

7   Pass
%% assert(isequal(within_circle(10000),31417))

8   Pass
%% assert(isequal(within_circle(50000),157093))

9   Pass
%% assert(isequal(within_circle(999999),3141521))

10   Pass
%% assert(isequal(within_circle(9999999),31415993))

11   Pass
%% assert(isequal(within_circle(99999999),314159017)) % Approaching to Pi...

12   Pass
%% filetext = fileread('within_circle.m'); assert(isempty(strfind(filetext, 'switch'))) assert(isempty(strfind(filetext, 'case'))) assert(isempty(strfind(filetext, 'if')))