I'm having a very strange problem on my calculator. A certain string of operations doesn't work on a program; every time I run it, it yields a data type error. I don't think it's an actual data type e

Not all calculators have that. The Fx115ES and the FX991 ES have a lot more options thatn the FX300Es and FX350ES. I believe you only have COMP (general computational mode), Table and STAT.
Why? It was not designed that way.

If it worked perfectly before then it should continue doing so. However when you used it the second time something might have changed in the variable you are feeding it. Foe example if the program needs a parameter A that is supposed to be integer (whole number) but now A stores a decimal value then A is of the wrong data type and the program complains.
I think you should clear all variables and all lists and restart the program. It may be safer to archive the program, then reset the RAM of the calculator. After that, unarchive it and run it.

First try removing all four AAA batteries and the small lithium backup battery (above the four AAA batteries). Leave all batteries out for five minutes, then replace them and try to start the calculator. If this doesn't work...

Replace all but 1 AAA battery. Press and hold the "CLEAR" button on the calculator. While holding the "CLEAR" button down, replace the missing AAA battery. While still holding the "CLEAR" button, turn the calculator on. The display should read "RAM Cleared". Release the "CLEAR" button and press again to remove the message.

If that doesn't work, remove 1 AAA battery again. Repeat the preceding instructions with the "DEL" key: With the battery removed, press and hold the "DEL" key. With the "DEL" key held down, replace the battery and turn the calculator on. The screen should say "Waiting... Please install calculator software now." Release the "DEL" key. Download this program onto your computer (from Texas Instruments). Connect the calculator to the computer using the USB cable provided with purchase. Run the TI OSDownloader program and follow the on-screen instructions to re-install the calculator's operating system.

(-19) + 9 + (-3)

I have no idea what you mean by linear calculation reset. So I will not address it. As to the operation, (5+5[a b/c] [=] my calculator did not scream Syntax Error and dutifully supplied the missing parenthesis. The result is 7u1u2 or 7 and 1/2

I suspect you entered (5+5) [a b/c] 2 or (5+5) [/] 2 [=]. On my calculator the first key sequence yields 7u1u2, while the second key sequence yields 7.5

Hello,
The syntax of the command is as follows
:Request Message, VarName
where Message is a character string containing the message that will be displayed as a prompt, and VarName is the name of the string variable where the input will be stored.
If you want to input a numerical value you must convert it from character string to a numerical value (I know, it is like splitting hair but string 123456 is not the same as number 123456)
You convert from string to numerical value with the expr() command.
Exemple:
:Request "Value of a? ", s
:expr(s) --> a

That should do it.

Hope it helps.

Hello,

If you have say to multiply 100 numbers by one single multiplier ( you have 100 multiplications to perfom) you use the Constant function abbreviated to K.

This is how you go about it
in a*b , a is called multilpicand, b is the multiplier.
You enter the multiplier (6) then you press twice on the multiplication key. You are ready to repeated the some operation but with a different multiplicand
You enter the first mutiplicand then you press = (or enter) the result is displayed.
Every number you are going to enter will be multiplied by 6
[6][*][*] -------constant multiplication with 6 as multiplier, Then
[5][=/ENTER/EXE] yields 30
[6][=] yields 36
[0.5][=] yields 3.

Be careful!! If you do not enter a new multiplier and just press [=] the calculator uses the last calculated result as the multiplicand. (On certain calculators, the last result is stored in a register called Ans (short for answer.)

What I described for the multiplication is valid for any arithmetic operation. Thus
[6][+][+] is constant addition with 6
[18][/][/] is constant division with 18 as divisor.

Hope it helps

parseInt(java.lang.String, int)

This code takes two arguments, a string constructor from the Java language and an integer. Its purpose is to parse (meaning de-construct or disassemble into component parts) one data type into another.

Here is an example of a Java program to specify and print out the dimensions of a rectangle, taken from the page http://www.roseindia.net/java/beginners/entervaluesfromkeyboard.shtml:

class Rectangle{
int length, breadth;
void show(int x, int y){
length = x;
breadth = y;
}
int calculate(){
return(length * breadth);
}
}
public class EnterValuesFromKeyboard{
public static void main(String[] args) {
Rectangle rectangle = new Rectangle();
int a = Integer.parseInt(args[0]);
int b = Integer.parseInt(args[1]);
rectangle.show(a, b);
System.out.println(" you have entered these values : " + a + " and " + b);
int area = rectangle.calculate();
System.out.println(" area of a rectange is : " + area);
}
}

Sir that is a school poject and i cannot assist you with such, cause projects like this although they seem hard, are actrually quite simple..

1.) Plan out exactly what needs to be done
2.) figure out how to get it done
3.) do it as planned..

for examply yours is 1.) open a file
2.) get the value of the string to be seached
3.) Search the string
If found, record location, update
occurence
4.) Update results

5.) GET A GOOD GRADE

There are a lot of source code aviable on the net.. You didnt specify which language you were using, here a a site with tons of written applications, source code and tutorials..

www.planetsourcecode.com