android market: MathHelper MathHelper Lite Description: MathHelper allows you to solve math exercises and get full steps of sollutionATTENTION: Finally! MathHelper opearates on English language (including built-in math reference)!!! MathHelper is a unique application for students. The uniqueness of the application is that it allows us to see not only the answer, but a detailed solution of the problem. Now you do not need to order the work in math or ask for help from classmates - assistant in mathematics will do everything himself. In addition to solving problems, the application includes the theory on these topics and a scientific calculator. MathHelper Lite allows you to solve a wide range of tasks. MathHelper allows you to quickly solve typical mathematical exercises of the linear and vector algebra, devided in 4 sections: 1. Linear Algebra - Operations with matrices: *Matrix transposition *Calculate determinant of a Matrix *Matrix Inversion *Adding and Subtracting Matrices *Matrix multiplication *Scalar Matrix multiplication *Calculate the rank of a Matrix 2. Linear Algebra - Systems of linear equations: *Gauss method *Cramer's method *By the inverse of the matrix 3. Vector Algebra - Vectors: *Finding the magnitude or length of a Vector *Collinearity of two Vectors *Orthogonality of vectors *Vector Addition, Subtraction and Scalar Multiplication *Vector Multiplication *Finding the Angle Between two Vectors *Finding the cosine of the angle between the vectors AB and AC *Finding the projection of one Vector on another *Coplanarity of the Vectors 4. Vector Algebra - Figures: *Calculate the area of a triangle *Whether the four points lie on one plane *Calculate the volume of a tetrahedron (pyramid) *Find the volume and height of a tetrahedron (pyramid)