Arithmetic mean size - 1st moment
Maximum thermal efficiency of an Otto cycle
Nose cone Spherically blunted tangent ogive( Y- coordinate of the tangency point )
Cotangent function
Dividend cover ratio
Orbital Eccentricity
Probability that an electron hits an ion at ionization process
Radius of a Contact Area between two cylinders with parallel axes
Nose cone ( center of the spherical nose cap)
Morley's trisector theorem (area)