Maths pages
- Geometry and Trigonometry
- Differential Equations
- Special Functions
- Matrices
- Eigenvalues, Eigenfunctions and Linear Operators
- Imaginary Numbers
- Differentiation
- Integration
Geometry and Trigonometry
- The Tetrahedron
- Gabriels Horn
- Special values of the Trigonometric functions
- Differentiation and Integration of basic sinusoidial functions
- Area of a circle
- Properties of a Sphere
- Properties of a Bowl
Differential Equations
Differential equations are those which solutions are not numbers (like ordinary algebraic equations), but whose solutions are new functions.
- Linear First-order equation (Integrating factor method)
`y'+F(x)y=G(x)` - Bernoulli equation
`y'=F(x)y+G(x)y^2` - Riccati Equation, special case
`y'=F(x)+ky^2` - Second order autonomous differential equation
`y''=ay'` - Linear second order equation
`y''=F(x)y` - Second order Bessel type
differential equation
`xy''+ay'+by=0` - Second order with exp(kx)y
`y''+aexp(kx)y=0` - The Hypergeometric Differential Equation
Special Functions
- The Hypergeometric Function
- The Exponential Integral
- The Lerch Transcendent
- The Bessel Functions
- The Relationship between Exponential and Sinusoidial functions
Matrices
Eigenvalues, Eigenfunctions and Linear Operators
Imaginary Numbers
Differentiation
- u-substitution
`(dy)/(dx)=(dy)/(du) (du)/(dx)` - Chain and Product rule
`(dy)/(dx)=(dy)/(du) (du)/(dx)` and `(d(uv))/(dx)=u(dv)/(dx)+v(du)/(dx)`
Integration
- Integrals appearing in kinetic problems
- Integration by Parts
`int uv'dx = uv - int vu'dx` - Integration of sin2(x)
`int sin^2(x)dx` - The Exponential Integral
`"E"_1(x)` - The Lerch Transcendent