How do i do the reverse from expand function ?

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tomer gigi
tomer gigi 2021년 11월 12일
답변: Chidvi Modala 2021년 11월 19일
I have an expression lets say
a^2_2*a*b+b^2+b
and i want to simplify the expression to get
(a+b)^2+b
what is the proper way of doing this ?

답변 (1개)

Chidvi Modala
Chidvi Modala 2021년 11월 19일
Hi Tomer,
In general, you may use simplify(expr) function to perform algebraic simplification of expr. But simplify currently has some known issue with the simplification of sums. It cannot simplify your entire expression "a^2+2*a*b+b^2+b", but it can simplify "a^2+2*a*b+b^2" to "(a+b)^2". You may use the following example as a workaround.
syms a b;
simplify(expand(a^2+2*a*b+b^2)) + b

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