@FajarPurnama 18 January 2021 edited more from that month

Finding Periods in Signal Equation Through Visualization Back in high school and university in department of science and mathematic, it is compulsory to solve mathematical problem manually using theories through formulas. However in Engineering, it is the application that is important, and thus we are encouraged not to waste time solving manually and instead use simulators such as Matlab, Octave, and today there are online ploters. For example in one of my assignments in Signal and System Analysis course, I was asked to find periods in signal equations through visualization rather solving through formulas. Period is defined as a complete cycle. https://www.mathworks.com/products/matlab.html https://www.gnu.org/software/octave/index https://www.desmos.com/calculator

x(t)=cos⁡(2t+π/4), Period = π

x(t)=(cos⁡(t))2, Period = π

x(t)= ejπt, Period = 2

x[n]=cos⁡((πn2)/8), Period = 8

x[n]=cos⁡[πn/4]+sin⁡[πn/8]-2cos⁡[πn/2], Period = 16 Mirrors https://www.publish0x.com/fajar-purnama-academics/finding-periods-in-signal-equation-through-visualization-xvwmjln?a=4oeEw0Yb0B&tid=readcash https://0darkking0.blogspot.com/2021/01/finding-periods-in-signal-equation.html https://0fajarpurnama0.medium.com/finding-periods-in-signal-equation-through-visualization-71e601a904a4 https://0fajarpurnama0.github.io/bachelor/2020/08/07/period-signal-eqation-visualization https://hicc.cs.kumamoto-u.ac.jp/~fajar/bachelor/period-signal-eqation-visualization https://steemit.com/engineering/@fajar.purnama/finding-periods-in-signal-equation-through-visualization?r=fajar.purnama https://stemgeeks.net/engineering/@fajar.purnama/finding-periods-in-signal-equation-through-visualization?ref=fajar.purnama https://blurt.buzz/@fajar.purnama/finding-periods-in-signal-equation-through-visualization?referral=fajar.purnama https://0fajarpurnama0.wixsite.com/0fajarpurnama0/post/finding-periods-in-signal-equation-through-visualization http://0fajarpurnama0.weebly.com/blog/finding-periods-in-signal-equation-through-visualization https://0fajarpurnama0.cloudaccess.host/index.php/9-fajar-purnama-academics/181-finding-periods-in-signal-equation-through-visualization https://read.cash/@FajarPurnama/collection-of-my-mini-assignments-in-current-science-and-technology-in-japan-2016-course-115c08e0 https://www.uptrennd.com/post-detail/finding-periods-in-signal-equation-through-visualization~ODUxNTcz