JavaScript Learning notes first week math

Javascript first week

math is commonly used Method

1 , parseint ()

Rounding: Takes the integer at the front of the string and returns

2 , Math.ceil ()

Rounding up: A decimal number adds 1 to the integer part

3 , Math.Round ()

Rounded

4 , Math.floor ()

Rounding down

5 , Math.Abs ()

The absolute value of the return number

Math's Method

Math.Abs (): Calculates the absolute value.

Math.acos (): Calculates the inverse cosine value.

Math.asin (): Calculates the inverse chord value.

Math.atan (): Calculates the inverse tangent value.

Math.atan2 (): Calculates the angle from the x-axis to a point.

Math.ceil (): On a number.

Math.Cos (): Calculates the cosine value.

Math.exp (): Calculates the exponent of E.

Math.floor (): Rounds to a number.

Math.log (): Calculates the natural logarithm.

Math.max (): Returns the larger of two numbers.

Math.min (): Returns the smaller of the two numbers.

Math.pow (): Calculates the Y-side of X.

Math.random (): Calculates a random number.

Math.Round (): Rounds to the nearest integer.

Math.sin (): Calculates the sine value.

MATH.SQRT (): Calculates the square root.

Math.tan (): Calculates the tangent value.

JavaScript Learning notes first week math