El-733a calculator manual

Personally, I like to always see five decimal places, but you may prefer some other number. To change the display, press 2nd TAB , and finally the numeric key that corresponds to the number of digits that you would like to see displayed. I would press 2nd TAB 5 to display 5 decimal places. That's it, the calculator is ready to go.

If you don't find the answer that you are looking for, please check the FAQ. If it isn't there, please drop me a note and I'll try to answer the question. We'll begin with a very simple problem that will provide you with most of the skills to perform financial math on the ELA:. How much will you have accumulated at the end of this time period? Before entering the data you need to make sure that the financial registers each key is nothing more than a memory register are clear. Otherwise, you may find that numbers left over from previous problems will interfere with the solution to this one.

Press 2nd C CE to clear the memory. Now all we need to do is enter the numbers into the appropriate keys: 5 into N , 10 into i , into PV. The answer you get should be Solving for the present value of a lump sum is nearly identical to solving for the future value. One important thing to remember is that the present value will always unless the interest rate is negative be less than the future value. Keep that in mind because it can help you to spot incorrect answers due to a wrong input.

Let's try a new problem:. Suppose that you are planning to send your daughter to college in 18 years. We want to find the present value.

Enter the data as follows: 18 into N , 8 into i , and , into FV. That is a lot of money to invest all at once, but we'll see on the next page that you can lessen the pain by investing smaller amounts each year. Sometimes you know how much money you have now, and how much you need to have at an undetermined future time period. If you know the interest rate, then we can solve for the amount of time that it will take for the present value to grow to the future value by solving for N.

This is the classic type of problem that we can quickly approximate using the Rule of However, we can easily find the exact answer using the ELA calculator. Enter 9 into i , into PV , and into FV. For example, to display five decimal places, press 2nd TAB 5.

To always see the full precision of numbers without trailing zeros , press 2nd TAB. A: This is one of the oddities about this calculator that I mentioned in the tutorial. In order to change the battery you must remove the two tiny screws on the back of the calculator, and then pry the unit apart carefully, please. There are two batteries located at the top of the calculator, just above the screen area.

Make sure that you place them with the positive smooth side up. Finally, after putting the calculator back together, make sure to press the tiny reset button on the back, near the bottom. In finance it seems that we are forever calculating various roots cube root, fourth root, th root, etc. Fortunately, this is pretty simple to do if you can remember a simple mathematical rule:. In this example, the 5th root of equals 2.

Using this technique you can calculate any root. Q: My calculator only has a key to calcuate natural logarithms.