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seen Dec 12 '12 at 2:00

Dec
12
accepted Give a context-free grammar to generate the following language $L = \{ a^ib^jc^k \space|\space 0 \leq i \leq j \leq i + k \}$
Dec
12
comment Give a context-free grammar to generate the following language $L = \{ a^ib^jc^k \space|\space 0 \leq i \leq j \leq i + k \}$
Ok, thank you very much!
Dec
12
comment Give a context-free grammar to generate the following language $L = \{ a^ib^jc^k \space|\space 0 \leq i \leq j \leq i + k \}$
How about the third attempt?
Dec
12
comment Give a context-free grammar to generate the following language $L = \{ a^ib^jc^k \space|\space 0 \leq i \leq j \leq i + k \}$
Ok, how about the third attempt?
Dec
12
revised Give a context-free grammar to generate the following language $L = \{ a^ib^jc^k \space|\space 0 \leq i \leq j \leq i + k \}$
added 157 characters in body
Dec
10
revised Find and draw the image of the triangle with vertices (2,1), (1, 2), (2,2)
added 104 characters in body
Dec
10
asked Find and draw the image of the triangle with vertices (2,1), (1, 2), (2,2)
Dec
9
comment Row Reduction with Cofactor Expansion
Oh, I see. Thank you.
Dec
9
comment Row Reduction with Cofactor Expansion
Thank you! So, why does my calculator and wolframalpha say 396? wolframalpha.com/input/…
Dec
9
asked Row Reduction with Cofactor Expansion
Dec
8
comment Give a context-free grammar to generate the following language $L = \{ a^ib^jc^k \space|\space 0 \leq i \leq j \leq i + k \}$
@user18297 You're right, thank you. Fixed it.
Dec
8
revised Give a context-free grammar to generate the following language $L = \{ a^ib^jc^k \space|\space 0 \leq i \leq j \leq i + k \}$
added 278 characters in body
Dec
8
revised Give a context-free grammar to generate the following language $L = \{ a^ib^jc^k \space|\space 0 \leq i \leq j \leq i + k \}$
added 2 characters in body
Dec
8
revised Give a context-free grammar to generate the following language $L = \{ a^ib^jc^k \space|\space 0 \leq i \leq j \leq i + k \}$
added 71 characters in body
Dec
8
asked Give a context-free grammar to generate the following language $L = \{ a^ib^jc^k \space|\space 0 \leq i \leq j \leq i + k \}$
Nov
19
accepted Describe the smallest subspace of $M_{2\times 2}$ that contains matrices…
Nov
19
comment Describe the smallest subspace of $M_{2\times 2}$ that contains matrices…
Ah. In that case, the set IS the smallest subspace. It is the basis.
Nov
19
comment Describe the smallest subspace of $M_{2\times 2}$ that contains matrices…
@BrianM.Scott, how does this translate to a basis? I'm used to row reducing into free variables that I translate into a general solution.
Nov
19
comment Describe the smallest subspace of $M_{2\times 2}$ that contains matrices…
I guess my first instinct is to think, "No solution!". So if it's fine, then how do I translate that to a basis? Is it a free variable column, and I just disregard the column of 0s before it?
Nov
19
comment Describe the smallest subspace of $M_{2\times 2}$ that contains matrices…
I actually did that, though I got [1 0 0 2; 0 1 0 -4; 0 0 0 -4]. I'm not sure what to make of the last row. Do I just disregard it?