The change of temperature and pressure can be described by the ideal gas state equation: PV=nRT, where P stands for pressure, V stands for volume, N stands for the amount of gas substance, R stands for gas constant, and T stands for temperature.

In mathematics, there are many interesting formulas, such as Euler formula: e (i π)+ 1 = 0. This formula involves five basic mathematical constants in mathematics: e, i, π, 1, 0. It is also considered as one of the most beautiful formulas in mathematics. In addition, there are various interesting measurement formulas in chemistry, biology and other fields.

Adopt formula

1, straight line segment; Pile coordinate calculation formula XP = x+lcos → "yp = y+lsina → 2"

2. The formula for calculating the coordinates of side piles is XAXpTcosa2-90), yyptsina-90) x в = XP+t cos (a →+90), y; =Yp+Tsin(a→2+90)

3. Transition curve segment; The formula for calculating the coordinates of the middle pile is x =+(l ort Cr 33 rcoa0)1= 5+(-orn+(HL, -3rdnin (o,)). When point P is located clockwise, its azimuth is a = a+90; When point P is located in the counterclockwise direction, its azimuth is a = a-90°.

4. The formula for calculating the coordinates of side piles is: XXpTCOSaBβ-90), YYP IN β-90) X = XPTCOSA β+90) and Y = YTSINA β+90).

Calculate the coordinates of middle piles and side piles at any position along the whole line. When calculating, insert a blank line (cells are strictly prohibited) in the range of the station number corresponding to the unknown point, enter the station number of the unknown point into the "Station Number" column of the table, and copy all the editing lines above it except the station number unit to the station number position.

You can also insert multiple blank straight lines within the starting point and ending point of the curve segment, and use "Fill in sequence" in the copy command to calculate the coordinates of multiple unknown points with equal distance.