Overview - PreCalculus Made Easy Solve any (set of) equation(s) for any variable Find Domain Synthetic Division - Step by Step Solve any Triangle Compute Matrices Find Tangent Lines Exponential Functions Solver Find Numbers in Sequences Click choice above and observe provided steps - PreCalculus Made Easy v9.0 is the only Math software worldwide that can do this!!!

Version 2.0

:F1
Point/Slope Solver F1:4
Parallel/Perpendicular Solver F1:5
:F2
Equation Shifter F2:8
Synthetic Division F2:A
Rational Zero Finder F2:B
:F5
Improvements to Triangle Solver (See Below)
:F7
Limit Solver F7:4
Sign Chart Maker F7:5
:F8
Function Tool (Zeros, Factors, or Expands) F8:2

::Triangle Section
Can now draw triangle using either attributes of a solved triangle or given
coordinates.  Will also solve a triangle given its coordinates.
:F5
Convert Radians to Degrees, or vice versa

After selecting "Pre-Calculus Made Easy" under APPS, the following screen appears:

Access the head menu by hitting the F1 or F2 or … key on the Calculator. To access an item, simply scroll down from the head menu using the cursor buttons.

The following gives an overview of all functions in the main module:

 F1:Prep. (Intro) F2: f(x) Functions F3: x^2 F4: e^x Exponents F5: Trig+Tools F6: Discrete Math F7:Calculus F8:Exit 1 Overview of Plotting points in a Cartesian Coordinate Plane. 6 Steps for Graphing any Function. Tutorial on Quadratic equations. Exponential Growth Tutorial. Unit Circle: Table of Values and an Interactive Circle. Sequences: Click Here For More Finds a Tangent line to any Non- Implicit Function at any given X, can graph that line, a normal line, and use that Tangent line to approximate at a given x. Solves any (system of) equation. 2 Tutorial/Solver for Distance, Midpoint, and Slope.  Also finds equation of a line given 2 points. Tutorial/Solver for Domain. Finds vertex, X and Y intercepts, and shows a graph of f(x). Exponential Growth Solver. (continuous and annual) Graphs and Attributes of 6 common trigonometric functions. Combinatorics: Click Here For more Finds the nth Derivative of any function. Function Tool (Zeros, Factors, or Expands) 3 Circle Equation Tutorial. Solver for Domain of f(g(x)). Complex # Tutorial/Solver. 5 Basic Exponent rules. Solving Triangles:Click here for more. Matrices: Click Here for More Finds definite/indefinite integrals. Play Simon Says: A Game of Memory. 4 Point-Slope Form Tutorial and Solver. Tutorial/Solver for Range. Rules for computing logarithms. Finds Limit of any function Information about contacting the Author. 5 Parallel/Perpendicular line Tutorial and Solver. Symmetry Tutorial. Sign Chart Maker Exit Program. 6 Positive/Negative Correlation Tutorial. Finds Symmetry of any function. 7 Finds vertical and horizontal asymptotes. 8 5 Common Functions Graphs. 9 Tutorial/Solver on Shifting functions. A Tutorial/Solver for Inverse Equations. B Step by Step Synthetic Division C Find Rational Zeros of any Function D Tutorial/Solver For composition of Functions.

2.2  The Triangle Solver

The following gives an overview of all functions in the Triangle Solver:

 Option# in head menu F1: Intro F2: Formulas F3: Solve Triangle F4: Draw Triangle F3: Convert F6: Exit 1 Some Basic Rules of Trigonometry. Pythagorean Theorem Select to solve triangle of type SSS, SAS, SSA, ASA or verify triangle existence. Draw triangle that was solved under F3. Convert Radians to Degree 2 Law of Sines Draw triangle using coordinates entered by user. Convert Degree to Radian 3 Law of Cosines 4 Explanation of 30-60-90 Triangles. 5 Explanation of 45-45-90 Traingles. 6 The Area formulas for Triangles.

2.3  Sequences Module

The following gives an overview of all functions in the Sequences Module:

 Option# in head menu F1: Geometric Sequences F2: Arithmetic Sequences F3:  Other Sequences F4:  Tutorials F5: Exit 1 Finds the first n terms of a Given Sequence. Finds the first n terms of an Arithmetic Sequence. Gives the 1st ten terms of a fibonacci sequence. Gives a tutorial on Geometric Sequences. 2 Finds the Finite sum of a Geometric Sequence. Finds the finite sum of an Arithmetic sequence. Gives the 1st ten terms in a square number sequence. Gives a tutorial on Arithmetic sequences. 3 Finds the Infinite sum of a Geometric Sequence. Finds the nth term of n Arithmetic Sequence. Gives the 1st ten terms of a cubic sequence. Gives a short tutorial on Factorials. 4 Finds the nth term of a Geometric sequence. Calculates the sum of an sequence using Sigma Notation. Gives a short tutorial on Sigma Notation. 5 Factorials a given number.

2.4  The Combinatorics Module

The following gives an overview of all functions in the Combinatorics Module:

 Option# in head menu F1: Counting Principle F2: nPr and Permutations F3: nCr and Combinations F4: Pascal’s Triangle F5: Exit 1 Calculates possibilities using Counting Principle. Computes the number of Permutations. Computes the number of Combinations. Shows a Pascal’s Triangle. 2 Gives a short tutorial on Counting Principle. Gives a short tutorial on nPr and permutations. Gives a short tutorial on nCr and Combinations. Computes the nth row of a Pascal Triangle.

2.5  The Matrix Module

The following gives an overview of all functions in the Matrix Module:

 Option# in head menu F1: Enter Matrices F2: Compute F3: Tutorials F2: Matrix Cryptography F4: Exit 1 Enter Matrix A. A+B Matrix Addition Tutorial. Encrypt a word or sentence into a Matrix or decode a given matrix. 2 Enter Matrix B. A-B Matrix Subtraction Tutorial. 3 View Matrices A and B. B-A Matrix Multiplication Tutorial. 4 A*B Finding the Inverse of a Matrix Tutorial. 5 B*A 6 A*B^-1 7 B*A^-1 8 View A^-1 and B^-1 9 Compute Aⁿ A Compute Bⁿ B Show Determinants of A and B C Allows the user to write his/her own equation using the entered matrices.

2.6  The Unit Circle Table Module

The following gives an overview of all functions in the Unit Circle Table Module:

UNIT CIRCLE

 F1: Quadrant I Display of Unit Circle Coordinates for 0, 30, 45, 60 degrees. F2: Quadrant II Display of Unit Circle Coordinates for p0, 120, 135, 150 degrees. F3: Quadrant III Display of Unit Circle Coordinates for 180, 210, 225, 240 degrees. F4: Quadrant IV Display of Unit Circle Coordinates for 270, 300, 315, 330 degrees. F5: Rules Incl: Circle Equation, sin(x), cos(x) , tan(x). F6: Exit

2.7  The Interactive Unit Circle Module

The following gives an overview of all functions in the Interactive Unit Circle Module:

 Option# in head menu F1: Set Angle F2: Solve F3:  Step Size F4: Restart F6: Exit 1 Enter an angle in radians or degrees to see the attributes at that angle. Solves sin, cos, or tan(x)=Ф for a given Ф. Set the interval size to a given angle in radians or degrees. Resets the current  Angle, step size, or both to original point.