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Jul
17
asked Algebraic structure for the floating-point arithmetic.
Jun
3
accepted How many ways are there to represent the number $N$?
Jun
3
comment How many ways are there to represent the number $N$?
Ouch, that was a mistake. Fixed it.
Jun
3
revised How many ways are there to represent the number $N$?
added 8 characters in body
Jun
3
revised How many ways are there to represent the number $N$?
added 20 characters in body
Jun
3
comment How many ways are there to represent the number $N$?
But what about the 2nd or the 3rd part? I can try to reformulate these questions(if needed).
Jun
3
comment How many ways are there to represent the number $N$?
Well, that's what I got: rewrote equation $(1)$ in this way: $1091=10(100a_3+a_1)+(100a_2+a_0)$. $x=100a_3+a_1$, $y=100a_2+a_0$. Thus, $1091 = 10x+y. \ \ 0 \leq x \leq 109$. For every $x$ there is only one $y$, so we get $110$ ways to represent $N$.
Jun
2
asked How many ways are there to represent the number $N$?
Mar
18
accepted Find positive and negative indecies of inertia of a quadratic form
Mar
17
revised Find positive and negative indecies of inertia of a quadratic form
added 2 characters in body; edited title
Mar
17
asked Find positive and negative indecies of inertia of a quadratic form
Feb
23
comment A basis for a vector space
Thank you for your answers and sorry for any inconvenience. My English isn't perfect at all as it is not my native language.
Feb
23
accepted A basis for a vector space
Feb
23
revised A basis for a vector space
Rephrased
Feb
23
asked A basis for a vector space
Feb
23
comment solving $\sqrt{3-\sqrt{3+x}}=x$.
Finding the derivative should help to understand a behavior of the function, I think
Jan
23
accepted Find the smallest value of $a$ that a solution for this equation exists?
Jan
23
asked Find the smallest value of $a$ that a solution for this equation exists?
Jan
20
asked How to solve the following system with parametric equation?
Jan
16
accepted How to prove that a set of logical connectives is functionally complete(incomplete)?