Pi is a number (which is 3.14....) which you will always get when you divide a circumference of circle by its diameter...
For example, by calculating the surface of a circle, using an integral.
ripple factor:=21/2 /3 *Xc/XL
Where pi (~ 3.1416) is represented by π, The formula C= πr2 yields the formula r2 = (C/π) therefore r = square root (C/π). ...which is the same as : r = (C/π)1/2.
To find the dimensions of a cylinder, you need its radius (r) and height (h). The formula for the volume (V) of a cylinder is ( V = \pi r^2 h ), where ( \pi ) is approximately 3.14. The surface area (A) of a cylinder can be calculated using the formula ( A = 2\pi r(h + r) ). These formulas provide the necessary relationships to derive the dimensions based on given volume or surface area.
I derive that this question needs to be moved.
circumference/diameter
the value of pi can be derived as the ratio between the circumference and diameter of every circle, say pi = circumference/diameter
For example, by calculating the surface of a circle, using an integral.
ripple factor:=21/2 /3 *Xc/XL
The area of the base of a cylinder = Pi times Radius squared. Diameter of a cylinder = 2 times Pi times Radius. To find the diameter derive the area of the base by Pi and then square root the answer. That will give you the value of the radius. Multiply that answer by 2 times Pi and you will have your answer.
Measure its radius in feet or derive it from the diameter or circumference. A circle with radius r feet has an area of pi*r^2 square feet.
Where pi (~ 3.1416) is represented by π, The formula C= πr2 yields the formula r2 = (C/π) therefore r = square root (C/π). ...which is the same as : r = (C/π)1/2.
To derive the cross sectional area of a two liter bottle do the following formula. Area = (radius * 2.54 cm/in)^2 * pi = X cm^2.
Derive the castiglino's theorem
it derive from Negro...lol
To find the dimensions of a cylinder, you need its radius (r) and height (h). The formula for the volume (V) of a cylinder is ( V = \pi r^2 h ), where ( \pi ) is approximately 3.14. The surface area (A) of a cylinder can be calculated using the formula ( A = 2\pi r(h + r) ). These formulas provide the necessary relationships to derive the dimensions based on given volume or surface area.
Answer should be; Δgz = 2*pi*G*rho(z2-z1 + sqrt(a^2+z1^2)-sqrt(a^2+z2^2)), Where a is the radius of the cylinder at depth z.