#### realandroid

##### New Member

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- Oct 18, 2011

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**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)