### There are 17 results

Broad Topics >

Patterns, Sequences and Structure > Limits of Sequences

##### Age 11 to 14 Challenge Level:

Start with two numbers and generate a sequence where the next number is the mean of the last two numbers...

##### Age 16 to 18 Challenge Level:

The family of graphs of x^n + y^n =1 (for even n) includes the
circle. Why do the graphs look more and more square as n increases?

##### Age 16 to 18 Challenge Level:

This function involves absolute values. To find the slope on the
slide use different equations to define the function in different
parts of its domain.

##### Age 14 to 18 Challenge Level:

By inscribing a circle in a square and then a square in a circle
find an approximation to pi. By using a hexagon, can you improve on
the approximation?

##### Age 16 to 18 Challenge Level:

$2\wedge 3\wedge 4$ could be $(2^3)^4$ or $2^{(3^4)}$. Does it make any difference? For both definitions, which is bigger: $r\wedge r\wedge r\wedge r\dots$ where the powers of $r$ go on for ever, or. . . .

##### Age 16 to 18 Challenge Level:

Can you use the given image to say something about the sum of an infinite series?

##### Age 14 to 18 Challenge Level:

Watch the video to see how to sum the sequence. Can you adapt the method to sum other sequences?

##### Age 16 to 18 Challenge Level:

Compares the size of functions f(n) for large values of n.

##### Age 7 to 11 Challenge Level:

Investigate the successive areas of light blue in these diagrams.

##### Age 16 to 18 Challenge Level:

The interval 0 - 1 is marked into halves, quarters, eighths ...
etc. Vertical lines are drawn at these points, heights depending on
positions. What happens as this process goes on indefinitely?

##### Age 16 to 18 Challenge Level:

Two problems about infinite processes where smaller and smaller
steps are taken and you have to discover what happens in the limit.

##### Age 16 to 18

In this article we are going to look at infinite continued
fractions - continued fractions that do not terminate.

##### Age 16 to 18

In this article we show that every whole number can be written as a continued fraction of the form k/(1+k/(1+k/...)).

##### Age 14 to 18

An article introducing continued fractions with some simple puzzles for the reader.

##### Age 7 to 14

Start with a large square, join the midpoints of its sides, you'll see four right angled triangles. Remove these triangles, a second square is left. Repeat the operation. What happens?

##### Age 14 to 16 Challenge Level:

The problem is how did Archimedes calculate the lengths of the sides of the polygons which needed him to be able to calculate square roots?

##### Age 16 to 18 Challenge Level:

A point moves around inside a rectangle. What are the least and the
greatest values of the sum of the squares of the distances from the
vertices?