Oh, dude, a bar notation is just a way to represent repeating decimals in math. It's like when you're too lazy to keep writing the same digits over and over again, so you just slap a bar over them and call it a day. It's basically the math world's way of saying, "I could write this out forever, but let's not and say we did."
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A bar notation is a decimal that goes on forever.Insted of doing the division forever it is a line you pu tubove the numbers that keep repeating.
2.01 the bar notation is overthe .01
In bar notation, it is .42. The bar rests atop the 42.
0.42
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