The best math tool for school and college! If you are a student, it will helps you to learn algebra.
Note: Quadratic equations help you to find the vertex and extremal values (minimum and maximum) of a parabola. Quadratic functions are frequently used in physics, engineering, economics, biology and many other areas.
If there are no real roots, you can also get the complex roots. The application will also show you the position of the complex roots in the complex diagram.
・因数分解の求解のために 64bit整数演算 を使用しています。項の次数が高くて係数に大きな数を入力した場合、オーバフローをおこして正しい結果が得られない場合があります。
The app uses Pollard's Rho algorithm to find factors of large integers, in combination with trial division optimized for speed when possible by interpreting sub-factors as long integers.
A menu button allows factorization calculations to be extended for faster devices. Pollard's Rho calculations are iterated more times when the depth in increased, which results in factorizing 'harder' numbers, but takes longer. The depth can also be reduced.
The app will accept arbitrarily large integers, and will find the prime factors of powers of 10 or other numbers with small factors very quickly.
Integers with prime factors of seven or more digits will take longer to factorize, depending on the device the app is running on.
Progress is shown by listing factors as they are found. If a sub-factor which is known to be non-prime is taking a long time to factorize, the display will show "working ...". Calculation can be cancelled by pressing the back button on the device. However, if the app cannot find all the factors, it will terminate and list any factors it has found, rather than hanging or freezing.
Note: By default, the variables have the following meanings: a = 1; b = 1; c = 0; If you do not enter other values in the appropriate fields, the application will solve the equation with these values.
“...ingenious app...makes it exceptionally easy to learn algebra..."- Dr. Alex Davidovic, former International Chess Master
Algebra can be a tricky subject to master but with the help of Hands-On Equations 1, equations such as 4x+2=3x+9 and 2(x+4)+x=x+12 become child’s play!
The app takes advantage of the Android's visual and touch features to demystify complex algebraic concepts.
The original Hands-On Equations program, using physical game pieces, has already helped more than a million students gain confidence with algebra. Now that same, proven method is available virtually in the palm of your hand.
In Lesson 1, the student mentally tries to figure out the value of the pawn that makes both sides balance by using reasoning or a guess-and-check strategy. The game pieces do not move in this first lesson.
In Lesson 2, the student places the game pieces unto the image of the balance scale to represent both sides of the abstract equation.
In Lesson 3, the student uses "legal moves" with the pawns to simplify and solve for the unknown X.
In Lesson 4,the student learns to use legal moves with the cubes.
A video introduction is provided for each lesson. (See sample video at http://youtu.be/ZvFwkDaM4YE.) Each video introduction is followed by two examples and ten exercises.
Level I of Hands-On Equations consists of six lessons and one review lesson. The student learns to solve equations such as 8+2x+3-x=2x+1 and 2(2x+1)=3x+8. There are more than 80 equations for the student to enjoy and solve!
Hands-On Equations is the ideal first introduction to algebra for elementary and middle school students. Not only will these students have FUN and be fascinated with the program, their sense of self-esteem will be dramatically enhanced as they experience success with sophisticated looking algebraic equations.
Older students who need help with algebra will also benefit from Hands-On Equations. These students may, for the first time, understand key concepts of algebra that have held them back.
The app is designed to accommodate multiple users while keeping track of the problems solved by each user. .
To see a video of a 10-year old solving 4+3x-2x+x=x+5 on the app, go to http://bit.ly/13gaGvW
About the inventor: Dr. Henry Borenson has taught mathematics to inner-city low achieving students as well as to Math Olympiad students at the Stuyvesant High School in New York City. After receiving a patent for Hands-On Equations, he founded Borenson and Associates to disseminate the Hands-On Equations program and the Making Algebra Child's Play workshop for teachers.
More information on Hands-On Equations can be found at www.borenson.com and on YouTube.
- Integer Factorization / Prime Factorization
- Calculate Greatest Common Divisor (GCD, GCF, HCF) from any set of numbers
- Calculate Least Common Multiple (LCM) from any set of numbers
Input numbers can be up to 14 digits long (99 trillion).
Least Common Multiple, Lowest Common Multiple, Smallest Common Multiple
Greatest Common Divisor, Greatest Common Factor, Highest Common Factor
If you have any suggestions on additional functionality or bug reports, just email me and I'll be happy to take a look.
More from developer
This app emits a high frequency sound (at 17.4kHz) that usually only young people can hear (<21) so with this you can annoy your teenage friends.
The app has a basic one button user interface, and should be easy for anyone to use.
*Also should note, this app has multitasking, so even if close the app, the sound will continue to play until you stop it.
Arithmetics was designed to be fully customizable and allows you to flash the screen green/red if you get a question right/wrong. It can also play a sound (Buzzer and pling noise).
Arithmetics allows you to choose which operators to ask, so you can disable subtraction, division and multiplication and only use addition if you like.
Arithmetics also allows you vary the difficulty of the questions by allowing you to change the highest number that can be asked. e.g you can change addition's highest number to 1000 and get questions like 343+784
Also PS. The screenshots look a bit jittery around the timer area because its quite hard to take a picture of moving text, so imagine a timer there.
And also if you've downloaded the app, could you please give me a rating. Thanks.