# CASIO CG20

## The fx-CG20 has been replaced by the fx-CG50

The fx-CG20 is an advanced

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# Features

## What you can do with a CG20

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### PLOT and SOLVE GRAPHS

Plot any graph in Cartesian (rectangular), parametric and polar form. Find the coordinates of roots, turning points and intersections easily.

### EXPLORE CALCULUS

Evaluate the derivative at a point. Draw the tangent and normal to the curve, showing the equation. Evaluate integrals and show the shaded area.

### DATA

Quickly create box plots, pie charts, histograms, scatter graphs and more. Plot regressions (linear, log-lin and a lot more). Import data for plotting and calculating statistics and regressions.

### PROBABILITY

Calculate Normal, Binomial, Poisson and t-distributions between values, and chi-square goodness of fit . Visualise continuous distributions (including Normal) as a graph, shading chosen probability.

### EXPLORE TRANSFORMATIONS

Set variable coefficients on functions to explore the effects of single and combined transformations.

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# Activities

## Learn by doing

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### CG20

## A Level

### Activity

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### Statistical Distributions & Probability

## The Gradient Function - Teacher Notes

Understand and use the derivative of f(x) as the gradient of the tangent to the graph of y = f(x) at a general point (x,y)### CG20

## A Level

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### Binomial

## Lucky Dice - Teacher Notes

Understand and use simple, discrete probability distributions, including the binomial distribution as a model; calculate probabilities using the binomial distribution### CG20

## A Level

### Activity

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### Newton-Raphson

## The Newton-Raphson Method - Teacher Notes

Solve equations using the Newton-Raphson method and recurrence relations of the form xn + 1 = g(xn)*airplay*

# Emulator

## For the big screen

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