1, root sign: is a mathematical symbol used to represent the root operation of a number or an algebraic expression.

2. Square root: also called quadratic square root, expressed as √ ~

3. Arithmetic square root: non-negative square root.

Second, the mathematical meaning is different.

1, root number: if a? =b, then A is the n-th root of B or A is the 1/n power of B. The n-th handwritten and printed characters are represented by, and the number of roots or algebraic expressions are written in the area surrounded by the left side of the symbol and the right side of the horizontal part above the symbol, which cannot be out of bounds.

2. Square roots: positive numbers have two real square roots in opposite directions, while negative numbers have no square roots.

3. Arithmetic square root: A positive number has two square roots, which are opposites, and a non-negative square root is the arithmetic square root of this number.

Extended data:

Square root operation:

1, like addition, subtraction, multiplication and division, has its own vertical algorithm for finding the square root.

2. Because each complement needs to add two digits, when the number of roots is more than one, make sure that the complement can't clip decimal points. For example, three digits must be operated separately from hundreds, and ten digits and one digit are added when complement is added.

3. Each transition number is changed by the last transition number. Then, one digit of the last transition number is multiplied by 2. If you need to carry, go to 1, and then add ten digits to the single digit. And so on, each bit adds a new operand.

4, the role of error value. If you need to be accurate to a higher number of decimal places, you can continue to calculate the error value according to the rules.

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