توضیحات:

The calculator 991 ex contains following features:
• Scientific calculator 115 can perform exponent calculation, draw graph, work as calculator es 115, calculate simple and advanced expression like 991 + 115 / 300
• Advanced calculator es 300 includes symbolic integration, calculate integral and perform advance calculation task.
• 991 science calculator provides various tools for student such as LCM, GCD, random integer and solve equation.
• Engineering calculator 115 es is a useful tools for engineering student to calculate fraction, convert fraction to decimal, calculate pi number and over 991 math functions
• Barcode is also included in this app.
• Smart calculator 300 es helps you solve homework better by calculating automatically without pressing equal button.