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2018-11-07 21:33:32 +0100	asked a question	Defining functions over symbolic domains Is there a way to define a function that takes a value (say $x$) on the interval $[-L, L]$ and is zero everywhere else? I tried the following code but it doesn't work. It gives me an error. This is because piecewise only accepts real intervals. Is there an alternative way of defining this? I want to be able to integrate/differentiate such types of functions so my understanding is that I also cannot use def here. `L = var('L', domain = 'positive') f = piecewise([((-oo, -L), 0), ([-L, L], x), ((L, oo), 0)])`
2018-11-07 21:33:32 +0100	asked a question	Defining a function over a symbolic domain Is there a way to define a function that takes a value (say $x$) on the interval $[-L, L]$ and is zero everywhere else? I tried this but it doesn't work. It gives me an error. `L = var('L', domain = 'positive') f = piecewise([((-oo, -L), 0), ([-L, L], x), ((L, oo), 0)])` I want to be able to integrate/differentiate such types of functions so my understanding is that I cannot use def here.