I don't get the idea of re-running mathmatica scripts. I haven't used it 20 years, but always saw it as an algebra system. There's no re-running. Once the math

I don't get the idea of re-running mathmatica scripts. I haven't used it 20 years, but always saw it as an algebra system. There's no re-running. Once the math is done it's done. Proving (manually) the correctness of the result is usually easier than finding it. Feeding numbers into the equations can be done elsewhere.