how can i interpolate paraboliclly instead of linearlly ?

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:bust_in_silhouette: Asked By horsecar123 
b=b.lerp(a,delta*5)

i wanna interpolate so that that the value b gets faster and faster as it approaches value a like parabolic not linearlly .

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:bust_in_silhouette: Reply From: CallMeRED

you can use an additional curve…
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