Question

Help with TI-83 graphing calculator.

Answer 1

I am trying to store 1.5 as x, but it keeps getting a syntax error?

Answer 2

yes because the graphing thing only allows y = stuff
not x = stuff

Answer 3

So, how would I store a new value?

Answer 4

Since, it worked for the first time.

Answer 5

what do you need to store it for? :-/
I'm not sure if you can...

Answer 6

lemme type it out, gonna take a bit time

Answer 7

ok :)

Answer 8

Use Newton's method to approximate the given number correct to eight decimal places. \[\sqrt[6]{49}\] I store x as 2, since \[\sqrt[6]{64} =2\] Then I plug y1 as \[x^6-49\] and y2 as \[6x^5\] on the graphing system. Then, use x-(y1/y2) sto -> x

Answer 9

y1 = sq(49)^1/6 = x^6-49 (original equation).
y2= the derivative of it.

Answer 10

so with the information put in the calculator, I keep pressing enter until I arrive at two lines that have the same 8 decimal places to solve the Newton's Method equation.

Answer 11

ohhh calculus is involved @Directrix

Answer 12

Now, I'm doing a different problem where it requires a different x value to be stored, but won't let me since it gives me a syntax error.

Answer 13

@Loser66

Answer 14

@jim_thompson5910 @zepdrix @Mehek14

Answer 15

TDLR: how to clear the value of x sto-> input number, so I can put in a new input number to won't get a syntax error on the graphing calculator?

Answer 16

I could solve it the original way, but it is so tidious....

Answer 17

http://www.tvmcalcs.com/index.php/calculators/faq/ti83_faq

Quote from link above:

`Q: How can I clear the memory of all variables and lists?`

`A: Unlike a complete reset (see below) this is pretty safe to do, though be careful not to delete any lists or variables that you need to save. To clear all memory in a TI 83 or TI 83 Plus:`

`Press 2nd MEM (that is the second function of the + key)`
`Select 2`
`Select 1 (All)`
`Scroll through the list and delete anything that isn't important.`

Answer 18

The original way would look like this, this is the one that i'm working on at the moment.

Answer 19

@Zenmo why not use something other than x? Like 'a' or something?

Answer 20

I know this stuff. Why do you have to store? you just put the numbers in the calculator to solve for each of the value. x5 = x6 means you get the root . you can stop there.

Answer 21

storing is the short cut method on the calculator. I'm on x4 at the moment. Checking to see if I did it correct by doing it the normal way.

Answer 22

you can also use the L1,L2, etc tables

you really only need L1
each row of L1 will record the values x1,x2,x3, etc
and you can reference the previous row without having to use the STO function

Answer 23

ok, after you type the first calculation and get the answer, you hit "2nd"+ "enter", the whole thing appear, you use <- --> to move the cursor to the number you want to change, change it only, then hit enter to get the new answer. Do it again to get the new one

Answer 24

Okay, I was manually inputting each value individually, so it was taking me quite some time...