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Problem 43212. Create tangent function out of cosine only

Solution 2135738

Submitted on 21 Feb 2020 by Jiahang Li
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Test Suite

Test Status Code Input and Output
1   Pass
filetext = fileread('TANGENT.m'); assert(isempty(strfind(filetext, 'tan')),'tan() forbidden') assert(isempty(strfind(filetext, 'sin')),'sin() forbidden')
2   Pass
x = 0; y_correct = 0; assert(abs(TANGENT(x)-y_correct)<0.01)

ans = 0
3   Pass
x = pi/4; y_correct = 1; assert(abs(TANGENT(x)-y_correct)<0.01)

ans = 1.0000
4   Pass
x = -pi/4; y_correct = -1; assert(abs(TANGENT(x)-y_correct)<0.01)

ans = -1.0000

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