Hadrian Tang

Ref: https://youtu.be/kDG5Z0pyi8c

defint(product(cos(n*x),n,1,m),0,2pi) throws=> TypeError: Cannot read property 'clone' of undefined Used in https://youtu.be/8RLUOOZdVKU. Pending enhancement to write: modulo arithmetic and solving them

defint(sqrt(abs(x)^3),-3,5) can=> 18/5sqrt(3)+10sqrt(5)

Ref: https://youtu.be/5-6T2nlBaDU

diff(integrate(x^2/(a+b\*x))) => (a+b\*x)^(-1)\*a^2\*b^(-1)-x+2\*a\*b^(-1)\*log(a+b\*x) diff(integrate(1/(9+(-25)\*x^3))) throws=> TypeError: Cannot read property 'clone' of undefined diff(integrate(1/((-9)-x^2))) => (1/3)\*((1/9)\*x^2+1)^(-1) diff(integrate(1/sqrt((-9)-x^2))) throws=> TypeError: Cannot read property 'clone' of undefined diff(integrate(1/x^3\*1/sqrt(x^2-4))) throws=> TypeError: Cannot read property...

New test case: defint(sqrt(log(9-x))/(sqrt(log(9-x))+sqrt(log(x+3))),2,4) => 1

Related to Section 5.2 of #350

3. Grouping Terms III Input|My Answer|Algebrite|Nerdamer -|-|-|- factor((l-m)x+(l-m)y)|(x+y)(l-m)|(l - m) (x + y)|(-m+l)\*x+(-m+l)\*y factor(a(c-d)-b(c-d))|(c-d)(a-b)|a(c - d) - b(c - d)|(-d+c)\*a-(-d+c)\*b factor(3k^2(u+4v)-2(u+4v))|(u+4v)(3k^2-2)|-nil + 3 k^nil|-2\*u-8\*v+3\*(4\*v+u)\*k^2 factor(5(x+y)-(x+y)t)|(x+y)(5-t)|-(-nil + t x + t...

Fix planned?

4. Identities I See #223