forward_differences.m
041b8992f8b7master

forward_differences.m
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			function [ output ] = forward_differences(X, Y, halfBoundary)
			% forward_differences(X, Y) evaluates the derivative f' of Y = F(X). As X
			% can contain points outside the reference interval, the result is shrinked
			% using halfBoundary parameter
			a = X(1);
			b = X(end);
			h = (b - a) / (length(X) - 1);

			output = (Y(2:end) - Y(1:end-1)) / h;
			output = output(1+halfBoundary:end-halfBoundary+1);


			end