

Apparently, caret is the most common American pronunciation of the circumflex character ^ (says this comment). In mathematics, the caret represents an exponent, such as a square, cube, or another exponential power.
#Caret symbol circumflex down arrow plus#
We have turned v (ʌ), IPA symbol for the vowel in plus (which is an open-mid back unrounded vowel), also used in some languages' orthography Alternatively referred to as the circumflex, the caret is the symbol ( ) above the 6 key on a standard United States qwerty keyboard.In mathematics, the caret represents an exponent, such as a square, cube, or another exponential power.

As you can see there are a ton of texting symbols out there. There is the caret, which is technically the hat below the line (‸), though this is apparently called by several other names too Caret The small up-facing arrow on the 6 key shift-6 on a typewriter keyboard.Well, ^ itself in maths, I usually call it hat, but another answer says Wikipedia says it is also called roof or house as a diacritic, I would call it a circumflex, or maybe even a hat in French, it is called "accent circumflexe" (circumflex accent), or le petit chapeau (the little hat), so yeah, hat is just fine.
