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.
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.
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