# Discretely increasing

Draw the graph of any linear function y(t)=a*t+b, where a and b are any numbers, at any sampling interval, and save the function values to a file.

Have a look at the sequence of values for the function and show that they form an arithmetic progression (to within rounding errors).

Relate the common difference to the values of a, b and the sampling interval used.

#linearfunction #sequences #digitalfunctions #arithmeticprogression

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