Author: Ton Lecluse 

    The calculator

 

 

Introduction
The construction box
Plane geometry
Investigating a section
Investigating a function
Drawing in perspective
A probability tree
The calculator
Getting a taste of the licensed version
Downloads
Register
Back to start

 
Geocadabra features a special calculator that can calculate using exact roots as well as fractions. Clicking on the calculator button will bring up the calculator. The calculator’s possibilities depend on the target group selected in the configuration box. We will start by giving you two examples with the difficulty set to low.
First example 

Check the box below the buttons to activate the exact notations with fractions function. Please refer to the example alongside.

The configuration allows you to adjust the representation of the fractions. The outcome of this particular example is 1 1/6 but the answer can also be 7/6

 


Second example 

Select show root numbers if possible in the show numbers part of the configuration box.

The capital V should be regarded as the root symbol.

Alongside √ 8/9 has been reduced to 2/3 √2.

Third example 

Using the calculator with difficulty set to high.

Below you find the answer to the following question: In a dice game you are allowed to throw the dice twenty times. How likely are you to throw a maximum of 4 sixes?

When you hover your cursor over a key, a syntax explaining the function of that particular key will appear.