# Josué Molina

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bio website molinajosue.blogspot.com location Houston, TX age 24 member for 2 years seen Feb 28 at 17:27 profile views 307

One Thousand Birds

# 445 Actions

 Jul16 comment $20$ hats problem I am curious: how can the last prisoner, the one who sees no one, guess his color? Jul16 awarded Citizen Patrol Jul15 comment How many positive integers $n$ satisfy $n = P(n) + S(n)$ I wrote a program to test this up to $10,000,000$ and found only $9$ numbers. Jul15 revised How many steps will it take to reach the wall? added 214 characters in body Jul15 comment Solving a simple quadratic equation Here is the question @Zar is talking about: math.stackexchange.com/questions/49229/… Jul15 answered How many steps will it take to reach the wall? Jun27 revised Reduction of order of 2nd order ODE Fixed LaTeX Jun27 suggested suggested edit on Reduction of order of 2nd order ODE Jun19 comment Polls about mathematics Using begged makes it sound like mathematicians are conceited or the asker is desperate. :-P Use requested if you want to sound polite. Jun19 revised Simple partial differentiation I LaTeXified the OP. Jun19 suggested suggested edit on Simple partial differentiation Jun19 accepted Meaning of $\bar{i}:=i+n\mathbb{Z}$ in Modular Arithmetic Jun19 revised Meaning of $\bar{i}:=i+n\mathbb{Z}$ in Modular Arithmetic I refined the OP. Jun19 comment Meaning of $\bar{i}:=i+n\mathbb{Z}$ in Modular Arithmetic Thank you for the clarification. I will update the OP accordingly. Jun19 asked Meaning of $\bar{i}:=i+n\mathbb{Z}$ in Modular Arithmetic Jun18 accepted The Mystery of the Integrating Factor Jun18 asked The Mystery of the Integrating Factor Jun18 answered Taking Partial Derivatives Jun18 comment Is this a valid application of “separation of variables”? Math isn't symbol sleight of hand; it has to make sense. Jun13 accepted If $m$ and $n$ are positive integers, then $(F_m,F_n)=F_{(m,n)}$.