# Integrating periodicity - Solution

Use the View option to switch off the display of the derivative and switch on the display of the integral. Then tap the Function icon, y(t) and the Function Function pop-up menu appears

## Graphs of Some Periodic Functions, with 0 offset, and their Integrals

### cos(t) and its integral

### 3sin(t) and its integral

### Triangular wave with 0 offset and its integral

### Square wave with 0 offset and its integral

All the integrals of periodic functions with zero offset above are periodic

## Graphs of Some Periodic Functions, with non-zero offsets, and their Integrals

### cos(t)+1 and its integral

### 3sin(t)-2 and its integral

### Triangular wave with offset 1 and its integral

### Square wave with offset 2 and its integral

None of the integrals of functions with non-zero offset are periodic

The offset has resulted in the integral function being sloped

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Versions will shortly be available for iOS and Windows.

plotXpose app is a companion to the book Mathematics for Electrical Engineering and Computing by Mary Attenborough, published by Newnes, 2003.