Embedded Files
Standard Mode - Vertical Orientation
Scientific Mode - Horizontal Orientation
SPECIAL KEYS
A single Click will DELETE what it at the RIGHT of the Cursor.
A Long Press will CLEAR ALL the formula in the display.
This key will DELETE what is at the LEFT of the Cursor.
This set of keys are used to Move the Cursor to the LEFT and to the RIGHT in the formula.
This Exponential Function will allow to write very fast numbers such as 105 or 102.4. See Functions for more details.
This key is used to write COMPLEX Numbers such as:
This key is used to separate arguments for complex functions, such as the following:
AUTO-CORRECTION FEATURES
MULTIPLICATION:
When you have a multiplication of Constants and Numbers, you can write them with or without the multiplication sign:
or
When you have a multiplication of Numbers/Constants with a Function, you can write it with or without the multiplication sign:
or
When you select a Function, if before it there is a Number, a Contant or a Closing Parentesis, then it will automatically add a multiplication sign before adding the Function:
AUTOMATIC PARENTESIS EVALUATION:
Parentesis is a single key that open and close parentesis automatically depending on the context of the formula.
This means that each time you press this key, it will evaluate the context of the formula and based on a set of conditions will automatically place an OPEN or a CLOSED Parentesis at the cursos position. In the evaluation it considers, among other factors, the number or open and closed parentesis, what is at the left of the cursor (numbers, constants, functions, open parentesis, closed parentesis, etc.).
To help you avoid the common error with Parentesis, it will constantly count the number of Open and Closed Parentesis, showing them in the Status panel, as it it shown on the right.
If the number of Open and Closed Parentesis is different, then it will mark them in RED in the Formula Display:
Below, you have a sequence of data entry that show how the Automatic Parentesis Evaluation works, changing parentesis colors as you type:
EXPOENTIAL FUNCTIONS:
When you use this function (also ex and 2x), it will behave different depending on the next element on the formula. If the next element is a Number or a Constant it will superscript that Number or Constant as it is shown in the next examples:
But if after this function you want to include functions or complex expressions other than a single Number or Constant, then you need to enclose them in Parentesis. For Numbers and Constants, enclosing in Parentesis is optional:
ROOT FUNCTIONS:
If you are trying to apply a ROOT Function (cubic or square root) to a complex expression, you always need to enclose that expression in Parentesis. But if you want to apply it to a Number or a Constant, enclosing in Parentesis is optional, as it is shown in the next two expressions where both will work correctly:
EXAMPLE OF POWER FUNCTIONS WITH INTEGER AND FRACTIONAL EXPONENT AND ROOT FUNCTIONS:
EXAMPLE OF COMPLEX EXPRESSIONS:
FORMULA HISTORY
In this screen you can select any of the lines that has a formula you used before. Doing this the screen will close and will put that formula in the main screen of the calculator so you can work with it.
If you do not want to select any formula and just want to return to the calculator, then press the Android Back button.
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