T991 Scientific Calculator1.24 - Google Play
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Publisher Description
CASIO calculator fx-991es emulator
T991 Scientific Calculator is the calculator for students and engineering student. Emulates CASIO fx-991es physical calculator.
Features:
1.percentage, powers, roots, trigonometric, logarithms calculator.
2.linear algebra, calculus, complex numbers, display result in rectangular and polar coordinates, matrix and vector.
3.equation solver can solve quadratic, cubic equations, systems of equations.
4.support undo, history, copy/paste
Random integers
Fraction calculations
Combination and permutation
Statistics (List-based STAT data editor, standard deviation, regression analysis)
9 variables
Table function
Equation calculations
Integration/differential calculations
Matrix calculations
Vector calculations
Complex number calculations
CALC function
SOLVE function
Base-n calculation
About T991 Scientific Calculator
The company that develops T991 Scientific Calculator is Jack Yu(δΊ). The latest version released by its developer is 1.24.
To install T991 Scientific Calculator on your Android device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2026-10-14 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the T991 Scientific Calculator as malware as malware if the download link to com.xinke.fx991 is broken.
How to install T991 Scientific Calculator on your Android device:
- Click on the Continue To App button on our website. This will redirect you to Google Play.
- Once the T991 Scientific Calculator is shown in the Google Play listing of your Android device, you can start its download and installation. Tap on the Install button located below the search bar and to the right of the app icon.
- A pop-up window with the permissions required by T991 Scientific Calculator will be shown. Click on Accept to continue the process.
- T991 Scientific Calculator will be downloaded onto your device, displaying a progress. Once the download completes, the installation will start and you'll get a notification after the installation is finished.
Program Details
System requirements
Download information
Pricing
Version History
version 1.24
posted on 2026-10-14
fix bug
version 1.23
posted on 2026-10-07
Fix bugs
version
posted on 2026-06-04
16KB page size support
version 1.17
posted on 2025-08-15
fix crash
version 1.15
posted on 2025-07-01
support Android 15 (API level 35)
version 1.14
posted on 2025-05-11
set decimal as default result format
version 1.13
posted on 2025-05-04
hardcode to english
version 1.12
posted on 2025-03-25
fix app split
version 1.11
posted on 2025-03-12
upgrade for sdk 34
version 1.10
posted on 2024-09-24
fix crash issue
Disclaimer
Official Google Play Link
We do not host T991 Scientific Calculator on our servers. We did not scan it for viruses, adware, spyware or other type of malware. This app is hosted by Google and passed their terms and conditions to be listed there. We recommend caution when installing it.
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