- #1

MathematicalPhysicist

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## Main Question or Discussion Point

in the attatch file there is the dd function.

what i want to know is: when x doesnt equal 0 the function equals 0 and the inegral is the integral of the number 0 which is any constant therefore i think the integral should be equal 0.

can someone show me how this integral equals 1?

for your convinience here is the website that the gif was taken from:

http://www.engr.unl.edu/~glibrary/home/DefineG/node6.html [Broken]

another thing that i dont understand is how can you restrict an integral with b and a when it equals a constant for example int(b-a):0dx. the anti derevative of 0 is some C now how can you put into a number numbers that propety is only for variables.

what i want to know is: when x doesnt equal 0 the function equals 0 and the inegral is the integral of the number 0 which is any constant therefore i think the integral should be equal 0.

can someone show me how this integral equals 1?

for your convinience here is the website that the gif was taken from:

http://www.engr.unl.edu/~glibrary/home/DefineG/node6.html [Broken]

another thing that i dont understand is how can you restrict an integral with b and a when it equals a constant for example int(b-a):0dx. the anti derevative of 0 is some C now how can you put into a number numbers that propety is only for variables.

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