Mathematical Analysis of Tetrahedron (dihedral angles between the consecutive faces & solid angle subtended by tetrahedron at a vertex)
Mathematical Analysis of Spherical Triangle (Spherical Trigonometry by H.C. Rajpoot)
HCR's Infinite or Convergence Series (Calculations of Volume, Surface Area of Oblique Frustum, Perimeter, Major & Minor Axes & Eccentricity of Elliptical-section of a Right Circular
Optimum Solution of Snub Cube (an Archimedean solid) by using "HCR's Theory of Polygon" & "Newton-Raphson Method"
Mathematical analysis of small rhombicosidodecahedron (Archimedean solid) by hcr
Solid angles subtended by the platonic solids (regular polyhedrons) at their vertices by hcr
Mathematical analysis of uniform polyhedron (trapezohedron) with 2n congruent right kite faces, 4n edges & 2n+2 vertices lying on a spherical surface (Generalized Formula by Applying
Application of HCR's Rank Formula on color property of articles
HCR's Formula for Regular n-Polyhedrons (Mathematical analysis of regular n-polyhedrons)
Mathematical analysis of truncated tetrahedron (Application of HCR's Theory of Polygon)
Hcr's Theory of Polygon (Proposed by Mr Harish Chandra Rajpoot)
HCR's Rank Formula-2 applied to calculate rank of linear permutations of non-algebraic articles
Table of the important parameters of a snub dodecahedron (an Archimedean solid) by HCR
HCR's Rank formula 2 (to calculate rank of any linear permutation when the repetition of articles is allowed)
Numerical problems based on HCR's Rank Formula in Linear Algebra
Analysis of all five platonic solids using HCR's formula
HCR's Rank Formula-2 (Revised & Updated on 06/12/2014)
HCR's Series (Expansion of factorial of any natural number)
Solid angle subtended by an elliptical plane at any point lying on the vertical axis
HCR's Hand Book (Formula of Advanced Geometry by H. C. Rajpoot)