Scientific calculator plus 991

Tools for student

Contains adsIn-app purchases

About this app

Scientific calculator 300 plus, 991 is the calculator for students and engineering student. Calculator 991 plus provides powerful functions in a real calculator 991 300 . It makes advanced calculator 991 become the most useful calculator for university and school.

Application includes some calculators inside:
- Basic calculator 300 plus
- Advanced calculator 115 plus
- Scientific calculator 991
- Scientific calculator 991 plus
- Graphing calculator 84 plus

Let's see some special features:

◉ Basic calculator 300 plus and 115 plus: supports from basic mathematics to advanced math functions: percentage, powers, roots, trigonometric, logarithms calculator. Fraction calculation 991 supports convert fraction to decimal, mixed fraction and solve fractions problems.

◉ Advanced calculator 115 plus: combines of hyper calculator and simple scientific calc. This calculator is a multi-functional advanced calculator 991 with all features in one app. Such as linear algebra, calculus, complex numbers, display result in rectangular and polar coordinates, matrix and vector.

◉ Scientific calculator 991 plus: includes smart equation solver. Equation solver can solve quadratic, cubic equations, systems of equations. Caluculator solves any polynomial. Smart scientific calculator 991 has exponent calculator contains scientific calculations such as derivative, integral, square root calculation, factorial calculation, pi calculation, equation solver.

◉ Scientific calculator 991: supports calculate with infinity number of digits, prime factors, random numbers, combinations, permutations, GCD and LCM. This calculator 991ex is a real engineering simulator. Scientific calculator has features of 500 es, 500 ms, 300 es plus, 991 es plus. Calculator keyboard layout same as calculator 300 es plus, 991 ex and es plus.

◉ Graphing calculator 84 plus supports function graph, polar, parametric and implicit function. Graphing calculator 84 can draw tangent, tracing, derivative, root, min and max. It simulates for graphing caluculator 83 and t1 84, 84 plus.

◉ Integral calculator 991 plus provide powerful calculator to calculate integrate, derivative, differentiation and integration.

◉ This scientific calculator 991 includes CAS (computer algebra system), which can perform symbolic calculation.

◉ Some other features: math formula, physics formula, unit conversion, theme, font and programming.

Ratings and reviews

This is a good app that does works like a real scical, but my suggestion is that maybe we were given an option to know how that type of answer was generated, like showing a step-by-step tutorial. And I know that there are multiple apps with that but I mostly prefer not installing them and just install one that has all, no waste of storage. Knowing that I am not the only one who is also struggling in their math/sci subjects, adding a feature like this would be easier to access for many students.

It is very easy to use, it has more configurations than a scientific calculator, but pretty much does what a scientific calculator does. It has the same features as a scientific calculator. It does what it says. The ads are not insufferably intrusive. Also, the themes and the ad-free experience are the only things you have to pay for, which the average student like me does not deem necessary.

I really appreciate how the app shows you your answers in different expressions and can convert the units. I also like how there's everything I could need to calculate any mathematical equation so there's no need to use other online calculators that have a certain feature you need. The interface is simple and everything is formated In an easy to use way unlike other calculator apps I used before.

What's new

We appreciate all valuable feedback.
In this update, we added new features, fixed so some problems and improved the math engine.
Thanks for using our app.