CASIO fx-991CW fx-570CW CLASSWIZ Calculator Full Example Manual

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The calculator can handle various calculations and operations, including polynomials up to degree 4, matrix operations, trigonometric functions, and complex number calculations. It offers a wide range of features like memory functions, integral evaluations, statistical calculations, and unit conversions, making it versatile and suitable for various mathematical needs.

Insights

  • The calculator offers a wide range of functions, including basic calculations, statistical operations, and distribution calculations, making it versatile for various mathematical tasks.
  • It provides features for handling polynomials up to degree 4, simultaneous equations, and generating tables for functions, enhancing its utility for complex mathematical operations.
  • The calculator includes advanced capabilities like matrix operations, vector calculations, and complex number manipulations, enabling users to perform diverse mathematical tasks efficiently.
  • Detailed instructions are provided for setting up the calculator, adjusting settings like screen brightness and auto power-off time, and accessing key functions such as Pi and logarithms, ensuring ease of use for users.
  • The calculator's extensive functionality extends to trigonometric calculations, integral evaluations, statistical analyses, and unit conversions, making it a comprehensive tool for a wide range of mathematical applications.

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Recent questions

  • How can I perform basic calculations?

    The calculator can handle basic calculations like addition, subtraction, multiplication, and division. Simply input the numbers and the corresponding operation symbol (+, -, *, /) to get the result. Press the equal sign (=) to execute the calculation and obtain the answer.

  • What features does the calculator offer?

    The calculator provides a wide range of features including statistical calculations, distribution calculations, and handling polynomials up to degree 4. It also features a full spreadsheet for formula and calculation use, complex calculations, base calculations, ratio calculations, vector calculations, and matrix operations. Additionally, it offers a Math Box feature for dice rolling and coin flipping simulations.

  • How do I convert between different number systems?

    The calculator allows for conversion between binary, decimal, hexadecimal, and octal number systems. To convert a number, select the desired number system mode, input the number, and press the corresponding conversion button. For example, to convert a decimal number to binary, input the decimal number and press the binary conversion button to get the binary equivalent.

  • Can the calculator handle complex numbers?

    Yes, the calculator can work with complex numbers, allowing you to input complex numbers and perform calculations with them. You can find conjugates, arguments, real parts, and imaginary parts of complex numbers. The calculator also supports converting between rectangular and polar forms for complex numbers.

  • How can I perform matrix operations?

    The calculator can handle matrix operations such as addition, subtraction, multiplication, and finding determinants. To perform matrix operations, input the matrices you want to work with, select the desired operation from the menu, and execute the calculation. Make sure to save matrices before performing operations to ensure accurate results.

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Summary

00:00

"Advanced calculator with diverse functions and settings"

  • The calculator can perform basic calculations, statistical calculations, and distribution calculations.
  • It can handle polynomials up to degree 4, simultaneous equations, and generate tables for two functions.
  • The calculator features a full spreadsheet for formula and calculation use, including inequality calculations.
  • Complex calculations, base calculations like binary, decimal, and hexadecimal conversions are possible.
  • It offers ratio calculations, vector calculations, and matrix operations such as addition, subtraction, and finding determinants.
  • The Math Box feature allows for dice rolling and coin flipping simulations.
  • The Casio FX 991cw and Casio fx570cw are similar, with the former having a solar cell.
  • Instructions on turning on and off the calculator, setting the auto power-off time, and adjusting screen brightness are provided.
  • Details on key functions like shift for accessing additional functions like Pi and logarithms are explained.
  • Settings for number formats, angle units, and decimal marks can be adjusted for different display preferences.

20:08

Efficient and Versatile Calculator Functions

  • To print 2π, input 2, shift, 7 (π), and then exe.
  • To simplify calculations, omit certain multiplication and closing parenthesis steps.
  • For complex calculations like 4 times sine 30, you can skip some multiplication and closing steps.
  • Changing values in calculations is simple; for instance, switch from 30 to 45 by typing 45 and pressing equal.
  • Altering values like changing 4 to 14 is easily done by adding or subtracting the desired number.
  • To perform calculations like 6 divided by 2 plus 1, input the numbers and press equal for the result.
  • Utilize autocomplete by entering calculations like 6 divided by 2π to automatically adjust the format.
  • For more complex calculations, use specific buttons like shift, arrow keys, and dedicated symbols.
  • Convert calculations to different formats like mixed fractions or decimal by selecting the appropriate format.
  • Utilize memory functions to store and recall values for future calculations, simplifying complex operations.

40:42

Calculator Functions for Derivatives, Integrals, and More

  • To evaluate a derivative at 3, enter the equation 2x squared plus 5, move the cursor to the right, input 3, and press equal to get the answer 12.
  • For the same derivative at 4, delete the previous input, enter 4, and press equal to obtain the result.
  • To evaluate f(x) as sine x at pi over 3, set the calculator to radian mode, input the equation, and press equal to get the answer 1.5.
  • Adjust the calculator settings for integral evaluation, ensuring the correct mode and tolerance for accurate results.
  • Calculate the integral of x squared from 1 to 2 by entering the equation, lower bound, upper bound, and pressing equal for the result.
  • For the integral of cosine 2x over 2 plus 2 from pi to 2 pi, set the calculator to radian mode, input the equation, bounds, and press equal for the answer.
  • Include a tolerance value for more precise integral results by adding it after the upper bound and pressing equal.
  • Perform summation calculations by entering the equation and bounds, then pressing equal for the sum.
  • Utilize the calculator's percentage function for various calculations like finding percentages of values or increasing/decreasing values by a percentage.
  • Compute factorials, permutations, and generate random numbers using the calculator's functions, ensuring correct inputs and settings for accurate results.

01:01:52

Calculator Functions and Conversions Explained

  • To convert 2π radians to degrees, press "e" or "execute" to get the result of 360 degrees.
  • To convert 270 degrees to radians, set the calculator to radian mode by clearing all and selecting radian as the angle unit. Then input 270 degrees and press "equal" to get 3π/2 radians.
  • To convert polar coordinates to rectangular coordinates, ensure the calculator is in degree mode, clear all, and input the polar coordinates (radius and angle) using the catalog function. Press "equal" to obtain the rectangular coordinates.
  • In an example where x=4 and y=-5, to find the angle and magnitude (r), use the catalog function to convert from rectangular to polar coordinates. Input the x and y values and press "equal" to get the angle and magnitude.
  • When dealing with angles in the third quadrant, ensure to add the angles correctly to get the accurate result. Use the catalog function to convert from polar to rectangular coordinates, input the values, and press "equal" to obtain the correct coordinates.
  • To perform trigonometric calculations, ensure the calculator is set to the desired unit (degree or radian). Use the trigonometric functions like cosine, sine, and tangent by inputting the angle and pressing "equal" for the result.
  • Utilize engineering notation by inputting numbers and selecting the engineering notation format to display the values in scientific notation with prefixes like milli, micro, kilo, etc.
  • Use the solver feature to approximate solutions for equations. Input the equation, set the target variable, initial value, and execute to get the solution.
  • Solve equations involving constants like Newton's gravitational formula by storing the constants in memory, inputting the formula with the constants, and solving for the desired variable to obtain the result.

01:22:24

Calculator Functions and Error Correction Techniques

  • To begin, input A Alpha 4, representing A, followed by B Alpha 5 for B, and then Alpha 6 C squared, concluding with exe.
  • Proceed by selecting the target C, clicking on initial value, and executing to find the result of 110, indicating the distance and LR error.
  • Identify an error in the formula, correcting it by adjusting memory values to 1 times 10 to the 12th and 1 times 10 to the 9th, rectifying the issue.
  • Execute the formula again, setting the initial value for C as 1, resulting in a correct answer with a distance of 365,353 kilometers.
  • Explore custom functions by resetting the calculator, navigating to calculate General, and defining functions like f of x and G of x.
  • Define f of x as x squared plus 1, evaluate it with a specific value like 5, and then calculate f of x into G of x for further mathematical operations.
  • Utilize the table feature by setting a range from 1 to 5 with a step of 1, creating a table of values for functions like f of x and G of x.
  • Store values from the table into variables like A or B, edit the equations, insert or delete rows, and manage data retention methods effectively.
  • Generate a QR code for an equation like cosine 2.5x squared plus x, enabling quick access to the equation via a mobile device.
  • Engage in statistical calculations by entering data for one or two variables, performing linear regressions, and determining normalized variants based on specific values like T.

01:43:26

Data access and statistical calculations on calculator.

  • To access data, press OK, select a result, and choose Y = a + bx for data viewing.
  • To return to data, press Return, then OK, select regression result, and choose quadratic.
  • For statistical calculations, select linear regression, press Catalog, then Summation Statistics.
  • Choose desired summation values, select and press OK to view or save them.
  • To store a value, press Catalog, Statistics, Summation, select X, press =, choose a variable, and store it.
  • Retrieve stored values by pressing Variable, selecting the desired variable, and pressing EXE.
  • Calculate the mean by pressing Statistics and viewing the mean value on the screen.
  • Determine coefficients A and B, and correlation coefficient R for linear regression by selecting OK and statistical calculation.
  • Access linear regression values by pressing Catalog, Statistics, Regression, and selecting the desired values.
  • Utilize the calculator's distribution feature for various probability calculations like binomial and normal probabilities.

02:05:30

Batch Input and Formula Manipulation in Excel

  • To do a batch input of the same formula into a series of cells, go to cell B1 and enter the formula.
  • Select "Fill Formula" under tools to fill the entire column with the formula "2 * A1 - 3".
  • After pressing OK, the formula "2 * A1 - 3" will be applied to cells B1 to B3.
  • To change the formula in cell B1, delete the existing formula and press OK.
  • Confirm the changes made and observe the filled information from B1 to B3 with the new formula.
  • To input a batch of the same constant, go to cell C1 and select "Fill Value" under tools.
  • Enter the formula "B1 * 3" and press equal to apply the constant value to cell C1.
  • Adjust the settings for the app, such as Auto Calculate, to control how values are reflected in the cells.
  • Utilize the calculator to solve polynomials of different degrees, such as second, third, and fourth degree, to obtain real or complex solutions.
  • Follow the steps to enter coefficients and solve equations using the calculator, including resetting the calculator and selecting the appropriate equation type.

02:25:24

"Advanced Calculator Features for Equations and Numbers"

  • The calculator can solve simultaneous equations and systems of equations.
  • It can also handle general calculations and inequalities.
  • For quadratic inequalities, the calculator can determine when the equation is less than zero.
  • The calculator can display graphs to visualize the inequality solutions.
  • Settings can be adjusted to change the display format of calculations.
  • The calculator can also work with complex numbers, converting between rectangular and polar forms.
  • It allows for inputting complex numbers and performing calculations with them.
  • The calculator can find conjugates, arguments, real parts, and imaginary parts of complex numbers.
  • Conversion between different number systems like binary, decimal, hexadecimal, and octal is possible.
  • The calculator has specific ranges for each number system, and math errors occur if values are outside these ranges.

02:45:25

Calculator: Binary, Decimal, Hexadecimal Operations and Matrices

  • In binary mode, 1 + 1 equals 10 in binary, not 11.
  • Syntax error occurs in binary mode if attempting to add 5 and 3.
  • Switching to hexadecimal mode, 1F + CB equals 29 in decimal.
  • Decimal mode allows entering values in octal, hexadecimal, decimal, and binary.
  • Matrix operations require saving matrices before performing calculations.
  • Matrices can be edited, multiplied, added, and squared within the calculator.
  • Logic operations like AND, OR, and XNOR can be performed in binary mode.
  • Inverse of a matrix can be easily found using the calculator.
  • Determinant of a matrix can be calculated to determine its properties.
  • Transposing a matrix and generating identity matrices are also possible with the calculator.

03:05:14

Calculator Functions and Troubleshooting Guide

  • To exit a screen, press alt clear.
  • To edit VctA, select the tool VctA and choose edit to make changes.
  • To perform a dot product of MatA and B, select the Matrix catalog vector VctA, then choose Vector calculation and select dot product.
  • The dot product of VctA and VctB results in a number.
  • For a cross product, ensure the dimensions match (two by two or three by three), then select cross product after catalog vector VctA and VctB.
  • The length of the Matrix increases by one after a cross product, resulting in a new value.
  • To find the angle between two vectors, select Vector calculation, choose angle, then select the vectors VctA and VctB.
  • Normalizing VctB involves selecting Vector calculation, then unit vectors, and inputting VctB.
  • To find the absolute value of a vector, select catalog vector, then catalog numeric calc, choose absolute value, and input the vector.
  • The calculator offers 47 built-in scientific constants, accessible through the catalog and scientific constant options.
  • Unit conversion can be done by selecting the unit conversion option, choosing the desired conversion (e.g., centimeter to inch), and inputting the value to convert.
  • Battery replacement for FX570 and FX 991 CW models involves different types of batteries and varying numbers of screws to open the casing.
  • Error messages like math error, stack error, syntax error, argument error, dimension error, variable error, cannot solve, and range error indicate different issues with calculations or input.

03:27:32

High-Precision Calculator with Extended Warranty

  • The calculator's specifications include a 16-digit display capacity, a calculation range from 0 to plus/minus 1 times 2 to the power of -99, a precision of plus/minus one at 10 digits for single calculations, and a precision for exponential display of plus/minus one at the least significant digit. The battery required is AAA or R03, with an approximate two-year battery life if used for one hour daily, consuming around 800 micro Watts. The operating temperature ranges up to 40 degrees Celsius (104 degrees Fahrenheit), with the same temperature range for the batteries. The package includes a six-month warranty, with the possibility of an extended warranty, and no manual is provided.
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