Questions & Answers for: Texas Instruments close tap

...tap (-)4, close the parenthesis, and tap ENTER. The answer shown is 2e^90i. (2 at ninety degrees). If you selected RADIAN mode, the answer would be 2e^1.57i (2 at 1.57 radians; or 2 at pi/2 radians) ...

my caculator screen is faded, i can barely read the numbers. it s barely a year old and i put in new batteries. how do i fix this? Hello, After the change of batteries, the screen reverted to default ...

WHY CAN'T I ADD FRACTIONS ON MY TI-86. Because the TI84 does supports fractions in a funny way. Tap (3/4+1/2) then tap MATH and tap ENTER twice and you get the answer 5/4. The TI 89 has a MODE called ...

I accidently sat some books on my calculator, and the screen went black...how do I make it go back to normal? Adjust the contrast by pressing and holding the Diamond key and then tapping the - key to ...

How do I get rid of a gray screen? You can adjust the contrast by pressing and releasing the 2ND key, then tapping the - key to lighten or the + key to darken the screen.

When powered on, the LCD screen is dark blue. Press and hold the Control key marked with a green diamond, then press the minus key (above the + ) to lighten the screen. If you lighten the screen ...

Everytime I tap upon the graph button it tells me "ERR: INVALID DIM". Help would be greatly appreciated. You're probably trying to graph a function that does not involve stat plot features. You can ...

how do I write a negative number on my TI-30xIIs calculator? tap the minus key before you enter the integer, i think, please check in the user manual.. Below is a weblink for a user manual please ...

My TI-81 screen is too dark. Is there any way to lighten the resolution on the screen? Thanks. Hold the [2nd] button down while tapping the up or down arrows. This will change your contrast.

close parenthesis Button does not work. Any ideas? Work arounds? The last closing parenthesis is often not necessary. You can also enter it using the catalog.