Scientific Calculator Exp

CYZ SOFT

- April 9, 2012

1

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(34)

Description

Scientific Calculator Exp is a powerful scientific expression calculator to evaluate complicated mathematical expressions. 科学计算器EXP提供简体正体中文界面和帮助，完全支持简体正体中文。EXP科学计算器支持所有的安卓手机和平板电脑，支持从1.5到4.0的安卓系统。

This calculator supports 40 diffused mathematical functions. It is also able to record historical inputs and results and evaluate complicated expressions, which are either not supported or hard to input in most traditional calculators. This calculator fully supports all the android phones and tablets from Android 1.5 to Android 4.0.

Input:

User is able to input an expression using keyboard or function buttons, or copy a historical record from history screen or by clicking the output box. An expression is made up of operands, operators, functions and parameters. An operand or a parameter may not be a number, it can be an expression. Blank characters between expression elements, i.e. operands, operators, functions and parameters, do not affect calculation result. Capitalized and uncapitalized characters are both supported. An example of expression is pow(4.01,3.1) *0.0731 + sin(toRAD(sum(17, 21, avg(3.71, log(198.2), -9.99,112.7),abs(-11.2))))/(2!) .

Besides the functions supported, this calculator can also handle the following operators: + (plus sign), - (subtraction sign), * (multiplication sign), / (division sign), ** (power sign), % (percentage), ! (factorial sign), & (bitwise and), | (bitwise or), ^ (bitwise xor), ~ (bitwise not), ! (not), + (positive sign) and - (negative sign).

If user is not sure how to use a function or a operator, he/she can press QuickHelp button and then press the function or operator button or type the function name or the operator by keyboard.

Output:

The output text box shows user the result of calculation. If syntax of the input expression is incorrect, output box shows error message. User can also place last calculation result in the input text box by clicking the output box. If the last calculation result includes error, expression will be put into input box instead of result.

Settings:

1. Bits of precision. This setting determines how many effective bits after decimal points should be shown. For example, if bits of precision is 4, 0.003204876 will be rounded to 0.003205.

2. Scientific notation. This field sets the value range that scientific notation, e.g. 2.1 [10 -37], should be used to show result.

3. Record length. The record length gives out the number of historical calculations recorded by Exp Scientific Calculator.

History:

The history screen shows user the recent calculation history. By clicking one of the records, user is able to place either expression or result into input box, which saves typing time. Note that if result includes error, expression will be put into input by default.

You must install this app before submitting a review.

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My review

Review from

# Reviews

Helpfulness

Newest

Rating

Helpfulness

All Versions

All Versions

Latest Version

4.6

34 total

5 26

4 5

3 1

2 1

1 1

A Google User

Adverts OK expression calculator but the interface is clunky and adverts make it worse. Calc Etc is much better and is free (no ads either)

A Google User

Well designed calculator. Best to me comparing to others.

A Google User

Expect to see graph support.

A Google User

Good tool for students

A Google User

Great tool. Like it

A Google User

Good but can be improved Says it does complex numbers - but although exp(i) works, log(i) sin(i) etc do not. I have moved to using addi instead.

User reviews

Well designed calculator. Best to me comparing to others.

What's New

Bug fixing

Improved GUI

Additional information

Updated

April 9, 2012

Size

198k

Installs

10,000 - 50,000

Current Version

1.3.2

Requires Android

1.5 and up

Content Rating

Everyone

Contact Developer

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* Conversion Functions - covers all common units for distance, area, volume, weight, density, speed, pressure, energy, power, frequency, magnetic flux density, dynamic viscosity, temperature, heat transfer coefficient, time, angles, data size, fuel efficiency & exchange rates

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Looking for a graphing calculator, matrix support, or simply want to support the cause of creating the greatest scientific calculator app on Android? Get MathsApp Graphing Calculator: https://play.google.com/store/apps/details?id=com.mathsapp.graphing

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hexflashor

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* Large input/output display

* Dedicated Graph Plotter

* Advanced Unit Converter

* Complex number

* Full Matrix Support upto order of 9x9

* Simultaneous linear equation solver upto 9 variables

* Polynomial equation solver - gives both real and complex solution

* Landscape Mode

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* Degree, Radian, Grade

* Binary, Decimal, Octal, Hexadecimal operation

* Bitwise operations

* Ten memory locations

* Results history feature

* Constants Table

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Upgrade to HF Scientific Calculator Pro to remove ads.

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Listen Read Device Only Added Installed Smart Calculator, It is All-in-one!!

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- sin, cos, tan, sinh, cosh, tanh, π, log, Mod, Exp,,,

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•There is a fourth layout for small phones that is not shown in the screen shots.

•A unit conversion utility that lets you build arbitrary composite units. Conversion factors are written to the history, so you can bind the factor with multiplication to do the same conversion many times.

The layouts are designed to be ergonomic for each of four device sizes in portrait and landscape. Here are some examples of what we've done to make the calculator easy and speedy to work with:

•On small tablets in landscape, the keys are split so you can operate the calculator with two thumbs.

•On small phones, the numeric keypad is right under your thumb when holding the device with one hand.

•Square root, square, inverse and negation are all close to the numeric keypad.

•On small tablets, the long "NHN-1" button is a gesture recognizer that lets you scroll the six input fields with your left thumb. That way you don't have to let go of the device with your right hand to click an input field.

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Listen Read Device Only Added Installed 1

Listen Read Device Only Added Installed # More from developer

## Scientific Calculator Plus

CYZ SOFT

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Listen Read Device Only Added Installed Scientific Calculator Plus is a powerful mathematical tool to do mathematical analysis and evaluate complicated mathematical expressions similar to Matlab. More than Matlab, it has a mathematical equation(s) solver which helps user to solve mathematical problems. It supports complex number, matrix, (higher level) integration, 2D, polar and 3D chart, string, programming (using a easy-to-use language called MFP) and unit conversion. It can run in both Android phones and tablets, PC or MAC with JAVA installed. Scientific Calculator Plus for Android includes a Scientific Calculator Plus for PC and Mac. User can connect mobile device to any PC or MAC via a USB cable, copy SDcard\AnMath\ folder to his/her own directory and launch the JMathCmd.jar in it. User can also download standalone Scientific Calculator Plus for JAVA (and for .Net) and docs at our website

https://sites.google.com/site/cyzsoft/

. Users from mainland China please visit our homepage at

http://www.baidu.com/p/cyzsoft

https://sites.google.com/site/cyzsoft/

. Users from mainland China please visit our homepage at

http://www.baidu.com/p/cyzsoft

This calculator has provided more than 100 diffused functions covering trigonometric calculation, complex number, matrix, integration, string and chart plotting. It is also able to handle mathematical operators like plus, division, power, percent, etc. And these operators fully support matrix and complex numbers. Thus user is able to evaluate complicated expressions, which are either not supported or hard to input in most traditional calculators. Moreover, the calculator is actually based on an easy-to-use programming language called MFP. Users can develop their own functions using this tool by a PC editor, store them in mobile SD-card and use them in calculator or command line. As a programmable tool, it can do everything.

The calculator can also think for user. It is able to solve unknown variables from complicated expressions and show the result to user. To calculate result of an expression, user input an expression like 3 + log(4.1 / avg(1,5,-3)). To solve unknown variables, user input single expression like log(x) - 7== 3, or a group of expressions like

y1/3+y2==7

y2/2-y3+y1==9

y3+y1+y2==2.4

. Then simply press start button, user will see value of 3 + log(4.1 / avg(1,5,-3)) or solved x or y1, y2 and y3 value.

This calculator has two basic user interfaces: smart calculator interface and command line interface. In the smart calculator interface, user is able to define variables, solve equation(s) and input expression(s) from historical records, using keyboard or clicking function buttons. Function buttons are configurable so that user is able to define his/her input keypads to input user-defined functions quickly.

User can also input expressions and plot 2D, polar or 3D charts in smart calculator. The number of unknown variables and variable name determine whether 2D, polar or 3D chart is plotted. After chart is plotted, smart calculator will show chart snapshot in the output box and history record. User can review the chart by simply clicking the chart snapshot

In the command-line interface (which works like Matlab), user uses keyboard to input expressions and sees the print output (which is not shown in the calculator interface) and return value. Command-line interface is best tool for developers to output intermediate results in their functions.

In order to help user input and evaluate (higher level) integration and plot charts, this calculator includes built-in integration and chart-plotting utilities. User no longer needs to type long and complicated expressions. Instead, by simply filling the text fields and pressing buttons, user will see the results or the charts. All the charts are automatically saved in SD-card which can be viewed and managed by file manager of the calculator later on.

Like Matlab, the calculator also provides a small program editor which gives developers much convenience to build their own functions. Nevertheless, they can also user a PC editor to do this job and save the program files in SD-card for future use.

1

Listen Read Device Only Added Installed ## Smart Math Calculator

CYZ SOFT

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Listen Read Device Only Added Installed Smart Math Calculator is a powerful tool to recognize, analyze, solve and plot mathematical expressions. It supports printed math expression recognition, complex number, matrix, (higher order) integral, unit conversion and 2D/3D/polar chart plotting. It is based on a powerful math engine, MFP programming language. However, to make it easy-to-use, user is not allowed to define functions.

The most novel functionality is printed math expression recognition. User can use camera to take photo of math expressions printed on white paper or computer screen. Then this calculator automatically converts the photo to monochrome image and user select the expressions to recognize. This app supports most of math operators and operands including Sigma, big Pi, integrate, sqrt, add, substract, multiply, divide, upper note, lower note, etc. The exceptions include lim (limit), infinite, etc which will be supported in the future. With this capability, calculation procedure becomes much easier and more straightforward.

Smart Math Calculator is different from other math OCR apps in the recognizing approach. It does not need to record the timestamps when user draws each stroke while other apps need this extra information to analyse expression structure and cut connected strokes. Based on this unique capability, Smart Math Calculator is able to recognize photos which other math OCR apps cannot handle.

Nevertheless, math expressions sometimes can be extremely complicated. We cannot guarantee that recognition result is 100% correct. But Smart Math Calculator is evolving. We promise to improve its performance persistantly. We also welcome suggestions from you.

In the backend, this calculator provides more than 100 diffused mathematical functions covering trigonometric calculation, complex number, matrix, integration, polynomial and chart plotting. Moreover, the calculator is able to solve unknown variables from complicated expressions and show the result to user. To calculate result of an expression, user input an expression like 3 + log(4.1 / avg(1,5,-3)). To solve unknown variables, user input single expression like 4*x**2 + x == 3, or a group of expressions like

y1*3+4*y2-3*y3==7

y2/2-3*y3+y1==9

y3/3-6*y1+y2==2.4

. Then simply press start button, user will see value of 3 + log(4.1 / avg(1,5,-3)) or solved x or y1, y2 and y3 value.

An input expression is made up of operands, operators, variables, functions and parameters and is case-insensative. An operand or a parameter may not be a number, it can be an expression. Blank characters between expression elements do not affect calculation result. Examples of expression includes pow(4.01,3.1) *(0.0731 + 9i) + sin(toRAD(sum(17, 21, avg(3.71, log(198.2), -9.99,112.7)))), abs(-11.2)/(2!) + exp(i+0.7) + x1 **2 == 12 - 6 * x1 ** 3 or [[2, 3+7i], [3-4.07i, 4.11i], [2, 6]]' * [[2],[7-3i],[6.88 * stdev(2, 3, 4)]].

There are two things user might keep in mind. First, equal is "==" while "=" is assign operator. For example, to calculate x value where x + 3 is 5, user should input x + 3 == 5 instead of x + 3 = 5. Second, power is "**" not "^". For example, to let Smart Math Calculator calculate x value where square x is 7, user should input x ** 2 == 7 instead of x ^ 2 == 7.

This calculator also provides a calculator assistant tool which can show value of constants and convert unit. Moreover, in order to help user input and evaluate (higher level) integration and plot 2D/3D/polar charts, this calculator includes built-in integration and chart-plotting utilities. Each plotted chart is automatically saved in SD-card for future reviewing.

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