Cody

# Problem 44344. The 5th Root

Solution 1876717

Submitted on 17 Jul 2019
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### Test Suite

Test Status Code Input and Output
1   Fail
filetext = fileread('fifth_root.m'); assert(isempty(strfind(filetext, '^')),'^ forbidden') assert(isempty(strfind(filetext, 'power')),'power() forbidden') assert(isempty(strfind(filetext, 'mpower')),'mpower() forbidden') assert(isempty(strfind(filetext, 'realpow')),'realpow() forbidden') assert(isempty(strfind(filetext, 'nthroot')),'nthroot() forbidden') assert(isempty(strfind(filetext, 'roots')),'roots() forbidden')

power() forbidden

2   Fail
n = 1/9765625; assert(abs(fifth_root(n)-1/25)<1e-5)

f = []

Error using assert The condition input argument must be a scalar logical. Error in Test2 (line 2) assert(abs(fifth_root(n)-1/25)<1e-5)

3   Fail
n = 1/5555; assert(abs(fifth_root(n)-0.178263811215444)<1e-5)

f = []

Error using assert The condition input argument must be a scalar logical. Error in Test3 (line 2) assert(abs(fifth_root(n)-0.178263811215444)<1e-5)

4   Fail
n = 1/3125; assert(abs(fifth_root(n)-1/5)<1e-5)

f = []

Error using assert The condition input argument must be a scalar logical. Error in Test4 (line 2) assert(abs(fifth_root(n)-1/5)<1e-5)

5   Fail
n = 1/125; assert(abs(fifth_root(n)-0.380730787743176)<1e-5)

f = []

Error using assert The condition input argument must be a scalar logical. Error in Test5 (line 2) assert(abs(fifth_root(n)-0.380730787743176)<1e-5)

6   Fail
n = 1/5; assert(abs(fifth_root(n)-0.724779663677696)<1e-5)

f = []

Error using assert The condition input argument must be a scalar logical. Error in Test6 (line 2) assert(abs(fifth_root(n)-0.724779663677696)<1e-5)

7   Pass
n = 1; assert(abs(fifth_root(n)-1)<1e-5)

f = 1

8   Fail
n = 5; assert(abs(fifth_root(n)-1.37972966146121)<1e-5)

f = 1.379700000000000

Assertion failed.

9   Fail
n = 25; assert(abs(fifth_root(n)-1.90365393871588)<1e-5)

f = 1.903700000000000

Assertion failed.

10   Fail
n = 50; assert(abs(fifth_root(n)-2.18672414788656)<1e-5)

f = 2.186700000000000

Assertion failed.

11   Fail
n = 500; assert(abs(fifth_root(n)-3.46572421577573)<1e-5)

f = 3.465700000000000

Assertion failed.

12   Pass
n = 3125; assert(abs(fifth_root(n)-5)<1e-5)

f = 5

13   Fail
n = 759375; assert(abs(fifth_root(n)-15)<1e-5)

Requested 7593740001x1 (56.6GB) array exceeds maximum array size preference. Creation of arrays greater than this limit may take a long time and cause MATLAB to become unresponsive. See array size limit or preference panel for more information. Error in fifth_root (line 3) list_num = (1:.0001:n); Error in Test13 (line 2) assert(abs(fifth_root(n)-15)<1e-5)

14   Fail
n = 9765625; assert(abs(fifth_root(n)-25)<1e-5)

Requested 97656240001x1 (727.6GB) array exceeds maximum array size preference. Creation of arrays greater than this limit may take a long time and cause MATLAB to become unresponsive. See array size limit or preference panel for more information. Error in fifth_root (line 3) list_num = (1:.0001:n); Error in Test14 (line 2) assert(abs(fifth_root(n)-25)<1e-5)

15   Fail
n = 312500000; assert(abs(fifth_root(n)-50)<1e-5)

Requested 3124999990001x1 (23283.1GB) array exceeds maximum array size preference. Creation of arrays greater than this limit may take a long time and cause MATLAB to become unresponsive. See array size limit or preference panel for more information. Error in fifth_root (line 3) list_num = (1:.0001:n); Error in Test15 (line 2) assert(abs(fifth_root(n)-50)<1e-5)

16   Fail
n = 75937500000; assert(abs(fifth_root(n)-150)<1e-5)

Maximum variable size allowed by the program is exceeded. Error in fifth_root (line 3) list_num = (1:.0001:n); Error in Test16 (line 2) assert(abs(fifth_root(n)-150)<1e-5)

17   Fail
n = 31250000000000; assert(abs(fifth_root(n)-500)<1e-5)

Maximum variable size allowed by the program is exceeded. Error in fifth_root (line 3) list_num = (1:.0001:n); Error in Test17 (line 2) assert(abs(fifth_root(n)-500)<1e-5)

18   Fail
n = 52658067346875; assert(abs(fifth_root(n)-555)<1e-5)

Maximum variable size allowed by the program is exceeded. Error in fifth_root (line 3) list_num = (1:.0001:n); Error in Test18 (line 2) assert(abs(fifth_root(n)-555)<1e-5)