FX Calculus Solver



Easy to use and powerful expression editor.

  • Visual(WYSIWYG) math editor
  • Support full math symbol keys
  • Support keywords
  • Problem templates for common problems

Detailed and animatable step-by-step solution.

  • Easily browsable static solution document
  • Animatable solution procedures
  • Multiple solutions provided when alternative solution methods are avaiable
  • Cite the formula applied in the solution

Automatic problem type recognition and problem text generation.

  • Extract the problem type from the typed-in expressions only.
  • Generate verbal problem statements from pure input problem expressions.

Cover most of the math subjects in Algebra, and advanced Calculus for college students.

  • Algebra
  • Number
  • Expression
  • Equation and Inequality
  • Function
  • Matrix
  • Graph
  • Calculus
    • Limit
    • Derivative
      • Explicit derivative
      • Implicit derivative to be supported
    • Differential equation to be supported
    • Integral
      • Indefinite/Definite integral
      • Multiple integral
    • Integral equation to be supported
    • Vector to be supported



    Excellent app and very useful! When u put an integral for example it shows you the answer step by step!!

    by B4boned

    Really, REALLY nice app

    I've only had this app now for 5 minutes and oh wow! This does what I want AND MORE! It shows you step by step (with each step having an animation transition) on how to solve a problem, and even teaches you have to solve elementary maths (like 352+739)!I haven't even bought the full version yet and it's so powerful! I am definitely going to buy this app! 5/5! Good work!

    by bigbeno37

    Nice App

    I have used this app to review limits and derivatives since it has been many moons since I had it in college. My son is in Calc I and it has really helped me be prepared for his questions. I was pleasantly surprised at how user-friendly it is; however you have to get used to some of the notations. The app does crash occasionally, but not to point I wouldn't continue using it. This app would be great for junior high school students through college Calculus. I especially like the play back animation for finding the solutions, nice feature for sure, for adding confidence to any student. I recommend this app. It's great.

    by calc-mom

    Question & Answer

    How can type-in keys like e, z, A, and more

    Since mathematical expressions need many special keys, those keys are grouped according to similarity:

    • a, b, c, ..., x, y, z
    • A, B, C, ..., X, Y, Z
    • sin, cos, tan, ...
    • more ...
    To type-in a key invisible in the keyboard, hold down a similar key in the same key group. For instance, to type in e, hold down x key in the keyboard, and to type in tan, hold down sin key.

    What does the premium-pack offer
    • Allows unlimited access to the problem solving server of FX Math Solver.
    • Allows to view the solution steps for all the sample problems in the App.
    What is the difference between FX Calculus Solver and FX Math Solver
    • FX Calculus Solver is for college students, and FX Math Solver is mainly for high school students.
    • FX Calculus Solver covers the more advanced subjects in Calculus, and FX Math Solver covers only subjects in Algebra and basic Calculus.

    Privacy Policy

    Data Collection and Storage
    • FX Calculus Solver do not collect any user (personal) information, including email address, phone number, and user account information of any cloud service.
    • FX Calculus Solver store the math problem texts, typed in by user, in the application(FX Calculus Solver) internal storage(sand box) to help user can browse the old solved problems.
    Data Use and Sharing
    • FX Calculus Solver do not collect any user (personal) information, and keep no user information to share with or distribute to any third party entity.
    • FX Calculus Solver send the problem text, typed in by user, to the cloud problem solving server, managed by Euclidus Inc. And the problem solving server use the user typed-in problem text only to derive the answer and solution of the problem for user, and do not share the problem text with any third party entity.