How to Type the Lambda Symbol

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How to Type the Lambda Symbol

If you’re a physician, there are times when you’ll need to type the Lambda symbol (λ)– this is the symbol that looks like an upside-down Y. It’s used in physics to show wavelength – the distance between corresponding points and two consecutive waves. Lambda is the 11th symbol is in the Greek alphabet and it has a value of 30.

Unfortunately, most keyboards don’t allow you to type various symbols such as lambda so to type it, you need to use different codes or the character map on your Windows or Mac PC.

Microsoft Programs

If you’re on Microsoft programs such as Word or PowerPoint, you can type the lambda symbol using an Alt + X code. This can be used if you have a keyboard that doesn’t have a number keyboard and you’re on a Microsoft program like Word. To type the lambda symbol, press 03BB + Alt + X. This will bring up the lambda symbol.

Windows

If your keyboard has a number keyboard, then you can type the lambda symbol using an Alt code – this consists of you pressing a few numbers whilst holding the Alt key. The numerical keyboard is on the right-hand side of your keyboard – most desktop keyboards have a numerical keyboard. If you’re using a laptop, you’ll only see the numbers in the top row of your keyboard and not on the right. To type the lambda symbol on your keyboard, type 955 whilst holding Alt. For the upper-case lambda, type 923.

If you have a laptop or keyboard without a numeric keypad, then you’ll need to use keyboard 7, 8, 0, U, I, O, J, K, L, and M. These keys are alternatives to 0-9 when Num Lock is activated. M=0, J=1, K=2, L=3, U=4, I=5, O=6, 7=7, 8=8, 9=9. If you haven’t got a numeric keypad:

1. Hold Fn + NumLk to enable Num Lock.

2. Hold the Alt key and type 955. Remember which number corresponds to regular keypads without a numeric keypad. So 9=9, 5=i.

3. Let go of all the keys and you should see the lambda symbol in your text.

Windows Character Map

If you’re confused by the Alt code, then you can just use the Map installed on your computer.

Character Map

1. Open the Start menu and open the Character Map.

2. In Search for, search lambda and double-click on it to make it appear in Characters to copy.

3. Select Copy to copy the symbol and then you can paste it within your text.

Mac

1. Go to the Finder > Emoji & Symbols.

Emoji

2. In the Search bar, search for lambda.

3. Right-click the lambda symbol and select Copy Character Info. This will add it to the keyboard.

4. Paste the lambda symbol within your text.

David Johnson is a freelance writer with 9 years of experience writing for Techzillo and other established tech outlets like iMore. His focus and key interests are Apple and accessibility as well as consumer technology in general. Read our Editorial Guidlines and Fact Checking process.

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