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Transformation of functions. Maths Supporting SET. Biology. Graph sketching. Graphing software and graphical calculators. Turning points. Differentiation. Physics. Calculus generally. Limits of Sequences.There are 14 results
Broad Topics > Patterns, Sequences and Structure > Limits of Sequences
Slide
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.
How Does Your Function Grow?
Age 16 to 18 Challenge Level:
Compares the size of functions f(n) for large values of n.
Squareness
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?
Small Steps
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.
Climbing Powers
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. . . .
Infinite Continued Fractions
Age 16 to 18
In this article we are going to look at infinite continued fractions - continued fractions that do not terminate.
Ruler
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?
Archimedes and Numerical Roots
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?
Little and Large
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?
Continued Fractions I
Age 14 to 18
An article introducing continued fractions with some simple puzzles for the reader.
Continued Fractions II
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/...)).
Approximating Pi
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?
Summing Geometric Progressions
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?
A Swiss Sum
Age 16 to 18 Challenge Level:
Can you use the given image to say something about the sum of an infinite series?
NRICH is part of the family of activities in the Millennium Mathematics Project.