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Old 05-08-2020, 05:34 PM
OrangeBlossomBaby OrangeBlossomBaby is offline
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Quote:
Originally Posted by coffeebean View Post
My laptop doesn't have those symbols. Not that I have found.
It's alt-keyboard code. Pi is alt-227. π Then the letter r, with alt-0178 to square it: r². Put that all together and you have:

(πr²)

Voila.