20 Most Recent Casio fx-300ES Calculator - Page 6 Questions & Answers

Storing

1. To store numerical values in the variables A,B,C,D,X,Y and M you use the [SHIFT][RCL] key combination to access the (STOre) function.
2. In what follows [ key] is the physical key and (key) is the SHIFTED key
3. ex: store the value 13 in variable A
4. 13 [SHIFT][RCL] (STORE) [(-)] (A)
5. The calculator displays 13 --> A on top line and 13.000.. on bottom line.
   

Recalling

• To recall a value stored in a variable ex: recall value stored in variable A
• Press [RCL][(-)] (A)
• Calculator displays A on top line and 13 on bottom line.

If you need to use the variables A,B,C,D,X,Y, and the = sign to create an expression to be solved with the solve( function you must press the [ALPHA] key

=: [ALPHA] [CALC](=)
A: [ALPHA][(-)] (A)
B: [ALPHA][ 0 ' "] (B)
X: [ALPHA][ ) ] (X)
Y:[ALPHA][S<=>D] (Y)
etc.

I have a cheap calculator two keys of which have been assembleo write myself a small note reminding me of the switch. The note I pasted on the inside of the cover and when I open the calculator I see the note and know what to do.If the calculator is still under warranty have it replaced or fixed. If it is no longer under warranty and the problem is with one or two keys you may want to live with it. If not get another calculator.

For the common logarithm use the "log" key. For the natural logarithm use the "ln" key. Both keys are located near the upper-right corner of the keyboard.To calculate the common logarithm of 3, press "log" "3" "=" . For the natural logarithm of 3, press "ln" "3" "=" .

Use the DMS key, the one with the degree symbol, an apostrophe, and a double apostophe deg ` ``Enter the number of unit degrees, press the DMS key, enter the number of minutes, followed by the DMS key, then the number of seconds followed by the DMS key. You must press the DMS key after each number, otherwise you get a syntax error. If you have no seconds, enter nothing.

Use the DMS key, the one with the degree symbol, an apostrophe, and a double apostophe deg ` ``Enter the number of unit degrees, press the DMS key, enter the number of minutes, followed by the DMS key, then the number of seconds followed by the DMS key. You must press the DMS key after each number, otherwise you get a syntax error. If you have no seconds, enter nothing.

Press SHIFT MODE 2 to select LineIO mode. Now all results will come out in decimal form.

its above the *10^x button on the bottom row middle button

Not with this calculator. Its brothers (FX 115ES and FX 991ES) have two = signs, one at the same position as for the FX300ES, and the other towards the top left of the keypad. Sorry.

1 inch =2.54 cm=2.54*10 mm=25.4mmThus 1mm=1inch/25.4Enter the value in mm then press the division operation key then type in 25.4 and press the EXE key.

The calculator does not have an equation SOLVER. But to solve this equation or any linear equation you need no calculator. Use the properties of equalities to isolate the unknown.X-17=34X-17+17=34+17 (Adding the same number to both sides of an equality does not break the balance).Since -17+17=0 and 34+17=51You get X=51

The exponential function e^x shares the same physical key as the natural logarithm ln(x). If one is accessed directly, the other (its inverse) is accessed by pressin the SHIFT key.

There is no memory that YOU can turn ON or OFF. All you can do is store numbers in some memory locations (A,B,C,D,X,Y) and M. By pressing ALPHA 9 (CLR) you reset the calculator, thus clearing the contents of the memory locations. Another way to clear a memory location is to store 0 in it. 0 ->ALPHA A, stores 0 in A.

To calculate a square root you press the square root key. A radical will be displayed. You type in the positive number whose root you want. Press the EXE key.

The calculator has two input modes: MathIO and LineIO. In mathIO results can be fractions or radicals (if you are calculating roots), and PI appears as PI. The final result may not be a decimal number. To convert such a result into its decimal approximation you press the key marked [S<>D]

I am not sure if there really is a question here. The cosecant function is defined as the reciprocal of the sine function : csc(x)=1/sin(x)You can calculate two ways. [ ] is a single key press, [(-)] is the change sign key.csc(-9.4946)=1[/][sin] [(-)] 9.4946[)] [EXE]The other way is to just calculate sin(-9.4946). the result will be stored in ANS memory. At this time, if you press the key [x^-1] you are calculating the reciprocal of the result stored in ANS. Both methods yield the same result.

The Casio Fx300ES does not have an Equation Solver. You must solve by hand (pen and paper). Here is how it goes.

Press the MODE button until the screen shows: [Fix Sci Norm] for the display mode, then press the number corresponding to Norm (ie 3 for Normal) then either 1 or 2. Display mode Norm1 shows numbers that are less than 1 in scientific mode, whereas mode Norm2 retains decimal format where is fits on the display.