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algebrite

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Computer Algebra System in Coffeescript

github.com/davidedc/Algebrite

davidedc/Algebrite

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### bessely ===================================================================== Tags ---- scripting, JS, internal, treenode, general concept Parameters ---------- x,n General description ------------------- Bessel function of second kind. ### Eval_bessely = -> push(cadr(p1)) Eval() push(caddr(p1)) Eval() bessely() bessely = -> save() yybessely() restore() #define X p1 #define N p2 yybessely = -> d = 0.0 n = 0 p2 = pop() p1 = pop() push(p2) n = pop_integer() if (isdouble(p1) && !isNaN(n)) d = yn(n, p1.d) push_double(d) return if (isnegativeterm(p2)) push_integer(-1) push(p2) power() push_symbol(BESSELY) push(p1) push(p2) negate() list(3) multiply() return push_symbol(BESSELY) push(p1) push(p2) list(3) return