Problem 43211. Create tangent function out of sin and cos

Solution 1577954

Submitted on 8 Jul 2018 by Rafael Hernandez-Walls

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Test	Status	Code Input and Output
1	Pass	filetext = fileread('TANGENT.m'); assert(isempty(strfind(filetext, 'tan')),'tan() 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