Step 1

Use the keypad given to enter functions. Use x as your variable.

Step 2

Click on "SOLVE" to process the equation/inequality you entered.

Here is how you use the buttons

CLEAR | Removes all text in the texfield. |

= | Processes the calculation entered. |

DEL | Deletes the last element before the cursor. |

a-z | Shows the alphabet. |

trig | Shows the trigonometry functions. |

⇦ | Move the cursor left. |

⇨ | Move the cursor right. |

⇧ | Move the cursor up. |

⇩ | Move the cursor down. |

□^{□} |
Exponent. |

□^{2} |
Squared. |

${□}/{□}$ | Fraction. |

$√{□}$ | Square Root. |

log | Log base 10. |

ln | Natural log(base e). |

abs | Absolute value. |

Degrees | Processes angles in degrees. |

Radians | Processes angles in radians. |

If you are not using the keypad. Here's how you use the features on the keyboard.

KEY |
FUNCTION |

^ | Exponent. |

^2 | Squared. |

/ | Fraction. |

* | Multiply. |

log | Log base 10. |

ln | Log base e. |

| | Absolute value. |

Tips

Always close your brackets for trig functions and logs. For example,
"sin(x" and "sin x" will not work.You need to use an open and close
bracket for trig functions.Similarly, for logs; use "log(x)" and "ln(x)".

For trig exponents, sin^{-1}(n) is not equal to sin(n)^{-1}.
sin^{-1}(n) is the inverse of sin(n) and sin(n)^{-1}=$1/{sin(n)}$

So trig exponents must be placed to the right of the closing bracket.