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Post Closed as "Duplicate" by Mr.Wizard pattern-matching
Post Reopened by Mr.Wizard
Post Closed as "Not suitable for this site" by LLlAMnYP, garej, m_goldberg, glS, xzczd♦
added 14 characters in body; edited title
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m_goldberg
m_goldberg
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Using Cases[]Cases for lists with 'containing Rule ( ->'> )

I am trying to extract an expression of given pattern from the list of the form

list={a->b,c->d} (typical output of Solve[])

list = {a -> b, c -> d} (* typical output of Solve *)

For example, all the expressions which look like x ->0> 0.

For obvious reasons, Cases[list, _ ->0]> 0] does not work. What should I do instead?

Using Cases[] for lists with '->'

I am trying to extract an expression of given pattern from the list of the form

list={a->b,c->d} (typical output of Solve[])

For example, all the expressions which look like x->0.

For obvious reasons, Cases[list,_->0] does not work. What should I do instead?

Using Cases for lists containing Rule ( -> )

I am trying to extract an expression of given pattern from the list of the form

list = {a -> b, c -> d} (* typical output of Solve *)

For example, all the expressions which look like x -> 0.

For obvious reasons, Cases[list, _ -> 0] does not work. What should I do instead?

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mavzolej
mavzolej
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Using Cases[] for lists with '->'

I am trying to extract an expression of given pattern from the list of the form

list={a->b,c->d} (typical output of Solve[])

For example, all the expressions which look like x->0.

For obvious reasons, Cases[list,_->0] does not work. What should I do instead?