20 Most Recent Texas Instruments TI-30XA Calculator Questions & Answers


Hello,
You add them normaly, not worrying about the display until the final result. Then you press [2nd][c/d] and it will converted.
Hope it helps

Texas... | Answered on Feb 05, 2019


The following examples will demonstrate how to convert decimals into fractions using the TI-30Xa and TI-30Xa Solar. Please be aware that TI-30Xa Solar School Edition calculators do not have this functionality.

Example: Convert .25 to 1/4
- Input .25, press [2nd][<--] (says F<>D above it).

** F<>D means fraction to decimal, decimal to fraction.

Example: Convert 1.38 to 1_19/50

- Input 1.38, press [2nd][<--].

Example: Convert 9.75 to 9_3/4

- Input 9.75, press [2nd]{<--].

Texas... | Answered on Sep 26, 2018


Hi,

Ex: calculate -log(15.32)
  1. Calculate the log 15.32 [LOG] [=] result 1.185258765
  2. Then press the change sign key (-) result -1.185258765
You can also try 15.32 [LOG] (-) [=]. Try to veriufy it on your calculator.

Here is a picture of the change signd677d4e.jpg
Hope it helps

Texas... | Answered on Mar 08, 2018


2^-4

Texas... | Answered on Dec 04, 2017


Press the STO key followed by one of the digits 1, 2, or 3 to store the number in the display to one of the three memories.

Texas... | Answered on May 16, 2017


That depends on how much gold you have. 24k merely indicates that the gold is pure, without any other substances mixed in. It refers to the purity, not to the total amount. If you have one kilogram of 24k gold, you have one kilogram of pure gold. If you have two kilograms of 24k gold, you have two kilograms of pure gold. If you have two kilograms of 12k gold, you have one kilogram of pure gold and one kilogram of something else.

Texas... | Answered on Oct 29, 2016


Sounds like you have a shorted out circuit card. Try replacing the batteries first to see if the power returns to the keys. If that doesn't work, you will find it cheaper to find a replacement calculator vs sending it to an authorized factory repair center. Hope this helps.

Texas... | Answered on Apr 16, 2016


Why do you want to get out od Degree mode. If you are doing trigonometric calculations, the angle unit is pertinent. If you are not doing trigonometry, it is irrelevant. You say you can cycle through DEG, RAD, GRAD. That is the way to set the angle unit.
However, there will always be an indicator on the screen (DEG, RAD, or GRAD).

Texas... | Answered on Mar 14, 2016


To clear any memory, store the value 0 in it.

Texas... | Answered on Feb 11, 2016


How can you graph equations (functions) if you do not have a graphing calculator?

Texas... | Answered on Feb 11, 2016


A rectangle is a 2D figure and is not a solid. Its area is the product of one side by the other side. Area =length*width.

Texas... | Answered on Feb 11, 2016


Change the computational mode.

Texas... | Answered on Jan 30, 2016


On the bottom of the calculator near the zero and the enter key it has the symbol (-) that is a negative number symbol

Texas... | Answered on Jan 16, 2016


Panasonic LR-44, Ray-Ovac RW-82, Union Carbide (Everyready) A-76 work on this calculator.

Texas... | Answered on Dec 01, 2015

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