# secret of mathematics

By [Me](https://paragraph.com/@siafrz-2) · 2022-07-23

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### I don't know how familiar you are with mathematics

In the subject of differential equations, to solve some equations, we need to use the imaginary number of the square root of -1 (i).(that is imaginary number) The interesting thing is that this imaginary number (i) disappears in the process of solving the equations and finally we get a real number at the end ! (travel from imaginary to reality!) This part of mathematics has always been strange and surprised me. Mathematics is really amazing.

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*Originally published on [Me](https://paragraph.com/@siafrz-2/secret-of-mathematics)*