[paulmasson]

As a developer who has recently begun contributing to SageMath, I have to concur with this comment. It's taken me some time to realize the extent to which Sage is geared toward pure mathematicians. The recent changes, for example, in Sage's piecewise() function have made it much less friendly in numerical evaluation than Mathematica's Piecewise[]. If Sage is to have a wider audience, transitions between symbolics and numerics need to become much more expedient.

Perhaps I can help in making that happen. And so might other people reading this thread!

[williamstein]

Please, please help! We desperately need input from you and people with similar numerical/applied experience. Sage is geared toward pure math, only since that's the backend of nearly all the contributors. But our mission statement has always made it clear that we very much want Sage to be of value outside of pure math.