terrygarcia's profile - activity

overview network karma followed questions activity

2024-06-30 22:59:04 +0100	received badge	● Famous Question (source)
2021-08-31 11:15:10 +0100	received badge	● Notable Question (source)
2021-04-01 14:13:30 +0100	received badge	● Popular Question (source)
2019-09-02 09:59:40 +0100	received badge	● Nice Question (source)
2019-09-01 19:22:03 +0100	asked a question	Vector valued function: unable to convert to symbolic expression This has been giving me quite a headache. It seems that I am unable to create even a simple vector-valued function of multiple variables. For example, the following `F(s,t)=vector([1,s,st])` spits out a big traceback ending with `TypeError: unable to convert (1, s, st) to a symbolic expression`. What's going on here? I know I can use substitution instead, but what if I'd prefer a callable function?
2019-02-15 07:29:14 +0100	received badge	● Famous Question (source)
2018-02-28 17:43:21 +0100	received badge	● Notable Question (source)
2017-08-10 15:33:47 +0100	received badge	● Student (source)
2017-07-27 01:02:46 +0100	received badge	● Popular Question (source)
2017-07-21 23:57:36 +0100	commented answer	Piecewise Symbolic Function with Conditional Statement There isn't any sort of conditional statement in the above code, which is what my question addresses.
2017-07-21 19:52:38 +0100	asked a question	Piecewise Symbolic Function with Conditional Statement I wish to incorporate a conditional Python expression (`if ... else ...`) in a symbolic function. Suppose I have a piecewise function k(n) defined for n = 1,2,3... as in the following pseudocode: `k(n) = 2 if n = 1 n otherwise` I compose this with another function g(x) and wish to integrate the result. For example, `f(x)=g(x)/k(n) f(n=...).integrate(x, 0, 1)` How can implement a non-evaluating conditional in a symbolic Sage function?