First of all, it is realized by the input method in the computer. At present, basically all input methods can directly input the word "not equal to" and then pop up the corresponding symbol, as shown below. ...

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In addition, you can also turn to the omnipotent Internet. We can directly search for "not equal to number" through Baidu or other search engines, and then we can definitely find these symbols in the webpage and paste them where we need them.

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In addition, if the sogou input method is installed in the computer, switch it out, and then click sogou's logo on the far left side of the status bar;

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Then a window will pop up above the status bar, and you can check "Symbol Collection" in the window, as shown in the figure. ...

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In the dialog box of Symbol Encyclopedia, we can click the "Mathematics/Unit" item on the left, and you can see the unequal symbols on the corresponding right page, as shown in Figure 2;

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