How often have you been working on a report or an engineering drawing and needed to add engineering characters that are not on the keyboard? Not sure what I mean? How about:
All you need is a windows computer with a full-size keyboard. Let’s start with the basics; the ALT code for a diameter symbol (Ø) is ALT+0216, so you press and hold down the left ALT key and then type 0216 on the number pad. when you let go of the ALT key the symbol will appear at the cursor.
|↔||Left & Right Arrow||ALT+29|
|↕||Up & Down Arrow||ALT+18|
|±||Plus & Minus||ALT+241|
|±||Plus & Minus||ALT+0177|
|≥||Greater than or equal to||ALT+242|
|≤||Less than or equal to||ALT+243|
|≈||approximately equal to||ALT+247|
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