You are Here: Home >< Maths

# sine wave question watch

1. What would be an appropriate function for a graph like this:

sine wave that starts with small y max values and increases gradually then decreases again...
in other words, to expand the magnitude in the y axis in the middle (or better still a quater of the way along the x-axis)
2. (Original post by kn9ziiig)
What would be an appropriate function for a graph like this:

sine wave that starts with small y max values and increases gradually then decreases again...
in other words, to expand the magnitude in the y axis in the middle (or better still a quater of the way along the x-axis)
A quarter of the way along the x-axis has no meaning
y=(e^x)(sinx) can represent a sine wave with small y that increases. To make it increase then decrease again i'd do the following:
y=(e^|x|)(sin|x|) gives such a curve with the small part at the centre the origin.
y=(e^|(x-a)|)(sin|(x-a)|) shifts it 'a' units to the right.
3. Thankyou I can work with that!

### Related university courses

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: July 1, 2005
Today on TSR

### Edexcel C4 Maths Unofficial Markscheme

Find out how you've done here

### 1,905

students online now

Exam discussions

Poll
Useful resources

### Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

### How to use LaTex

Writing equations the easy way

### Study habits of A* students

Top tips from students who have already aced their exams