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The order in which you are entering numbers and operations is not correct. For example, if you enter 5++2 most calculators will flag this as a syntax error. On some calculators you calculate square roots as follows: 25 [SQRT]= gives 5. That is the correct syntax for this type of calculators. For the newer ones you press the SQRT key and see displayed the square root symbol followed by a left parenthesis. You enter the number, close the right parenthesis, then =. If you do not respect the order you get a syntax error. I cannot say more because I have no idea what you were trying to do, and more importantly, I do not know the make and model of the calculator.
If you don't know about calculator electroncs, you don't have own means to repair it so take it to a repair technician, ask a diagnosis and evaluate if it's worth to repair your calculatoe or dispose of it.
The flashing icon says there is no tape in the camera. If that's incorrect then there is a problem in the cameras tape detection circuitry and can usually be repaired fairly inexpensively. However, it's not a user serviceable problem and will need to be repaired qualified service technician.
My name is Rick and I'm a professional repair technician with over 20 years in the business and have repaired many of these. I'm semi retired and work from home with little overhead so I can keep repair costs low. If you decide to have the camera repaired, please click HERE for a directory listing that suits your needs.
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The [MODE] key can be used to select the modes described below. Important! The following is a general explanation of Scientific Calculator modes. Note that your calculator may not include all of the modes described here. 1) Calculation Modes Before performing a calculation, you first need to select the appropriate calculation mode. COMP: Basic arithmetric calculations (arithmetic operations, trigonometric functions, etc.) COMPLEX: Complex number calculations SD: Single-variable statistical calculations (sample standard deviation, etc.) LR or REG: Paired-variable statistical calculations (linear regression statistical calculations, etc.) BASE or BASE-n: Binary, octal, decimal, hexadecimal number system calculations MAT: Matrix calculations (determinants, etc.) VCT: Vector calculations EQU: nth degree equations, simultaneous equations 2) Display Settings Use these settings to control how calculation results are displayed. Note that changing the Fix and Sci settings does not affect internal calculation results. Norm: Exponential display format and cancels the currently configured Fix and Sci settings. Fix: Specifies a fixed number of digits to the right of the decimal place. Sci: Specifies a fixed number of significant digits. 3) Angle Unit Setting (90°=?/2 radians=100 grads) Deg: Degrees Rad: Radians Gra: Grads 4) Engineering Mode Use this mode when you want to input and perform calculations using engineering symbols.
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I also have a Canon P23-DH 111 that is printing strange symbols. This has happened after an electrical storm.
I contacted Canon Support and they verified that the board inside has been corrupted by a power surge.
I now have a new Canon P23-DH V and I invested in a surge protector.
My grandaughter is playing with the old machine.