SPL-P100 calculator problem

To change the decimal from 0 to 2, you need to press the "TAB" button on the calculator. The last line on the screen, you will see indications, i.e. "print" or whatever. On that same line, in the middle, when you press the "TAB" button, you will see a little figure. Press "TAB" until you see "2" and you will have your decimal. It goes from 0 to ... whatever. At least, it will not round up your figures.

Did you try it on the "F" position?

Good luck,

Paul

Dont know what you are saying.
Basically turn it off and on if your stuck.

1) 2x + 5y = 7
2) 3x + 6y = 3

I'm going to use the method of elimination to solve for x and y.
Multiply 1) by 3 and 2) by 2 to allow the x's to be eliminated.

1) 6x + 15y = 21
2) 6x + 12y = 6

Now subtract line 2 from line 1.

0x + 3y = 15
---- ----
3 3 divide both sides by 3 to get y by itself.
y =5.
Substitute into 1) to calculate x.
2x + 5(5) = 7
2x + 25 = 7
2x + 25 -25 = 7 - 25
2x = -18
---- ----- divide both sides by 2 to get x by itself
2 2

x = -9

Check by plugging in answer into the other equation, in this case 2)

3 (-9) + 6(5) = 3
-27 + 30 = 3
3 = 3
We did it correctly and checked to prove that we did it right.

Good luck.

Paul

step 1: divide decimal number by 8
step 2: write down the residual of division
step 3: if the result of division if 7 or less, write it to the left of residual you wrote in step 2, and there you go, you;ve got an octal represent. If the result is greater or equal to 8 then:
step 4: divide that result by 8
step 5: write the residual of that division to the left of the last one you wrote
step 6: from tis point everything is the same as from step 3.

Example: calculate octal represent of 123

123 / 8=15 , and residual is 3
15 >= 8, so the next thing you do is:
15 / 8 =1, and residual is 7
so far, we have 73
1<=7, so you write it to the left of 7, and there you go, 173 is octal represent of 123.

Hope this was helpful.
if you want to check your calculations, most calculator software has option to automatically calculate octal represents, i.e.
http://www.statman.info/conversions/octal.html

I do not have access to a manual but from pictures I saw, I believe it is the key marked 4/5 that sets the round off.

Somehow you're calculating 12!/(5!/7!).

Press 1 2 MATH left-arrow 4 / 5 MATH left-arrow 4 / 7 MATH left-arrow 4 ENTER to calculate the desired value. Alternatively, you can press 1 2 MATH left-arrow 3 5 ENTER or 1 2 MATH left-arrow 3 7 ENTER to calculate the same thing.

It is unclear whether your equation is:

a: ((SQRT61) - 7) / 2
or
b: ((SQRT61) / 2) - 7

For a:
Type 61 SQRT.
Subtract 7.
Equals.
Divide by 2.
Equals. (Should be 0.4051248...)


For b:
Type 61 then SQRT.
Then divide by 2.
Equals.
Then subtract 7.
Equals. (Should be -3.094875...)

Good luck.

pressing the tab button displays the number of decimal places 0, 2, 3, 4, A, F on the bottom of the screen.

"Fix" indicates the calculator is rounding results. Press "Fix" followed by "." (decimal point) to remove the fixed decimal setting.