Casio fx-570ES Plus User's Guide
![Casio fx-570ES Plus Calculator manual cover](/images/ORVSWyNXTDxhxkWvhUBixoHn/thumbs/thumb175x175.webp)
To reset the calculator, press SHIFT, 9 (CLR), 3 (All), and then the equals (=) button. Confirm by pressing the AC button.
To enter a fraction, press the a b/c button to access the fraction template, then input the numerator, press the down arrow, and enter the denominator.
Access the equation mode by pressing MODE, select 5 (EQN), then 3 (ax²+bx+c=0). Enter the coefficients a, b, and c to find the roots.
Yes, press MODE and select 6 (MAT) to enter matrix mode. Define matrices by pressing SHIFT, 4 (Matrix), then input your data.
Press SHIFT, then MODE (SETUP). Choose 3 for degrees or 4 for radians to set the angle unit.
Enter SD mode by pressing MODE, 2 (SD). Input your data points using the DATA button, and then use SHIFT, 1 (STAT), and select standard deviation.
Input the base number, press the ^ button (x^y), and then enter the exponent to perform a power calculation.
Use the log function by pressing SHIFT, log. Enter the base followed by the value. Alternatively, use log base 10 or natural log with the log and ln buttons respectively.
Press SHIFT, then MODE (SETUP), and select 7 (Sci) to set the number of significant digits for scientific notation.
Ensure that the calculator has fresh batteries installed correctly. If it still doesn't turn on, attempt a reset by removing and reinserting the batteries.