Percentage and average calculator with expanded display

A scrollable grading and averaging calculator for the determination of a numeric grade of a test-exam and for the determination of the overall average of a compiled list of numeric grades, while also providing mathematical calculating and memory storage functions, said scrollable grading and averaging calculator comprising:

• microprocessing means for providing memory, arithmetic logic, display driver and further internal functions, the microprocessing means being programmed in a grade list mode to analyze a number of problems on a test-exam entered therein, and to contemporaneously provide first and further ranges of number of problems wrong and first and further grade lists setting forth a numerical grade corresponding to each respective number of problems wrong in the range of number of problems wrong, while facilitating the ability to scroll up and down, in terms of numerical value, through each of the ranges and the grade lists corresponding thereto, the microprocessing means further being programmed in an averaging mode to compile, through adding, deleting and editing, a list of grades to be averaged, while setting forth a resulting overall average, and facilitating the ability to scroll up and down, in terms of the index number assigned to a grade, through the respective grades of the list of grades compiled, the microprocessing means further being programmed in a calculator mode to carry out common mathematical operations and to store numeric values, and the microprocessing means further being programmed to singularly activate and utilize the grade list mode, the averaging mode and the calculator mode;
• entry means comprising a plurality of key pads, identified, circuited and functionally interfaced in relation to the microprocessing means to activate and utilize the programed grade list mode, averaging mode and calculator mode, for analysis and display purposes;
• expanded display means functionally interfaced with the microprocessing means:
• for displaying, in the grade list mode, the number of problems on a test-exam and the first and further ranges of number of problems wrong, and for displaying, as corresponding thereto, the first and further grade lists, each of said grade lists being displayed such that each respective grade is positionally adjacent in relation to the next respective grade, in sequence, in the grade list, the expanded display means further indicating each of the grade lists, scrolled to, while contemporaneously indicating the range of number of problems wrong, corresponding thereto, and the number of problems on a test-exam;
• for displaying, in the averaging mode, the respective grade and the corresponding index number of each of the grades compiled on a list of grades to be averaged, while contemporaneously setting forth and displaying the overall average of the list of grades then entered, and displaying and indicating each of the respective grades scrolled to;
• and for displaying, in the calculator mode the numeric values entered for arithmetic operation, the resulting numeric value and the memory status of a numeric value entered, deleted or recalled from memory storage;
• and housing and power means for the support add activation of the microprocessing means, the entry means and the expanded display means of said scrollable grading and averaging calculator.

A grading display and averaging calculator assembly for numeric analysis of test grade scores and other numbers symbolizing a whole, and for providing an overall average of a list of grades compiled through entry and editing by an operator, said grading display and averaging calculator assembly comprising:

• a keypad subassembly means for entering the number of problems on a test-exam and activating a grade list mode, for entering numerals, zero's and decimals as selected in the grade list mode, an averaging mode and a calculator mode, for entry of a number to be averaged, activation of the averaging mode, deletion of a respective grade entered for averaging and clearing of all numbers compiled on a list of grades to be averaged, and for scrolling up and down a grade list in the grade list mode, and up and down the list of grades to be averaged in the averaging mode,
• a microprocessor subassembly for processing and generation of digital information, and for providing programmed and programmable memory, RAM and ROM functions, arithmetic logic, display driver and further internal functions,
• the microprocessing subassembly being programmed in a grade list mode to analyze a number of problems or equal parts of a test-exam or whole entered therein, and to contemporaneously provide first and further ranges of number of problems wrong and first and further grade lists setting forth a plurality of numerical grades, respectively corresponding to each respective number of problems wrong in the range of number of problems wrong, while facilitating the ability to scroll up and down in numerical value through each of the ranges and the grade lists corresponding thereto,
• the microprocessing subassembly further being programmed in a averaging mode to compile through adding, deleting and editing, a list of grades to be averaged, while setting forth a resulting overall average, and facilitating the ability to scroll up and down the list of grades to be averaged by moving up and down from a respective index number assigned to a respective grade to be averaged in the list of grades to be averaged, and
• the microprocessing subassembly further being programmed in a calculator mode to carry out mathematical operations and to store numeric values,
• and being programmed to singularly activate and utilize the grade list mode, the averaging mode and the calculator mode,
• the keypad subassembly means comprising a plurality of keypads identified, circuited and functionally interfaced in relation to the microprocessor subassembly to activate and utilize the programmed, grade list mode, averaging mode and calculator mode, for analysis and display purposes;
• a visual display subassembly having accessible first, second, third and fourth number display fields,
• the first number display field having ten respective subdisplay fields, each of the respective subdisplay fields having two digital space areas for selective display of an integer, or an integer and a decimal point, each of the subdisplay fields being utilized to display a respective grade of the first and further grade lists, in the grade list mode, and to display first and further grade lists, of ten grades each, as scrolled to, on each of the ten subdisplay fields at a given time, the first number display field further functioning to display and present, utilizing two of it subdisplay fields, the overall average, in the list of grades to be averaged, in the averaging mode, and through utilizing a plurality of the subdisplay fields, to present numeric values of operation in the calculator mode,
• the visual display subassembly being functionally interfaced with the microprocessing means, for displaying numbers and numeric values in the grade list mode, the averaging mode and the calculator mode,
• the second number display field functioning to display the number of problems in the grade list mode, and index number of a respective grade on the list of grades to be averaged in the averaging mode, the second number display field having three digital space areas, each, for selective display of an integer,
• the third number display field functioning to display a lower numeric value, of the respective first and further ranges of number of problems wrong, respectively scrolled to in the grade list mode, and to display the numeric value of a respective grade entered on the list of grades to be averaged in the averaging mode, the third number display field having three digital space areas for selective display of an integer and decimal point,
• the fourth number display field functioning to display a higher numeric value of the respective first and further ranges of number of problems wrong, respectively scrolled to in the grade list mode, the fourth number display field having three digital space areas for selective display of an integer,
• the first, second, third and fourth number display fields operating and displaying numeric values in the grade list mode, and the first, second and third number display fields operating and displaying numeric values in the averaging mode;
• housing subassembly means for enclosure and support;
• and
• power means for activation of the grading display and averaging calculator.

A grading display calculator assembly for numeric analysis of test grade scores and equal parts of a whole by an operator, said grading display calculator assembly comprising:

• an entry subassembly having a plurality of function keys, identified, circuited and interfaced in relation to processor means for entry of the number of problems and parts, respectively, of a test-exam and whole;
• processor means for processing and generation of digital information and scrolling of respective, first and further ranges of a number of problems wrong and corresponding respective first and further grade lists, setting forth a plurality of percentage grades, each related to one of the respective number of problems wrong in the respective ranges of number of problems wrong, each of the function keys of said entry subassembly being functionally and activatably connected with said processor means;
• a memory subassembly, comprising ROM and RAM means, for preselected storage of software programs, and entry and storage of numeric values and calculated numeric values, respectively;
• a display controller, structurally interfaced with the processor means, for interpreting digital information form the processor means for visual display purposes;
• a visual display subassembly having first and further display fields, the first display field having means of illuminating, presenting and displaying a plurality of respective percentage grade values for each first and further grade list respectively scrolled to, displaying the plurality of respective percentage respective grade values for each of the first and further grade lists, in adjacent positional relationship to one another;
• the display controller being functionally interfaced with the processor means and the visual display subassembly, for interpreting digital information from the processor means for presentation on the visual display subassembly;
• housing subassembly means;
• and
• power means for activation thereof.