To make the higher derivatives more compact, see what you can do with
the function towards the top of calculus.ijs,
NB. x and y are linear reps of functions
NB. Result is linear rep of their product
NB. Someday we may combine polynomials etc
ftymes =: 4 : 0
'((',x,')*(',y,'))'
)
It's probably combining - and -@(2&o.) and not recognizing that it could
produce 2&o. .
I will look into the crash, which is a stack error but the question is
why it wasn't detected before it overwrote the stack.
Henry Rich
On 1/24/2020 9:23 AM, Arnab Chakraborty wrote:
Dear all,
sin deriv 1
works fine. So do
sin deriv 9
though the output is horrendously complex.
sin deriv 40
gives domain error. Last, but not the least,
sin deriv 10
crashes after some delay.
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