#logarithims

Requested by anon (don’t worry, I’ll answer you and link you, anon!)

Disclaimer: I’m not a math major, I took College Algebra last semester so I kind of remember this, but don’t at the same time... but here’s some links that I liked! Feel free to reblog and add your own links and opinions! :)

RULES & PROPERTIES(super important, yo!)

purplemath.com again has a pretty short and easy to read list of stuff! (link)

SOSmath.com has a properties list here: (link)

mathwords.com has a super helpful/quick list of things to remember when it comes to logs! (link)

SOLVING LOGARITHIMS

Coolmath.com explains them in a super easy way (link)

SOSmath.com has it step by step, but it’s pretty intimidating looking (link)

purplemath.com has examples and such (link)

Khan Academy video that is SUPER helpful (link)

Thinkwell video that’s a little longer, but is REALLY helpful, too! (link)

Hope this helped, anon! Good luck!

<3 Allyson

golly gee, i wish i could attribute this to some higher being or something. i am officially amazed nonetheless. 

astronomy pic of the day from many a year back:

nasa's explanation: : Uncomfortably close hurricane Isabel (left) and 30 million light-year distant galaxy M51 actually don't have much in common. For starters, Isabel was hundreds of miles across, while M51 (the Whirlpool Galaxy) spans about 50,000 light-years making them vastly dissimilar in scale, not to mention the extremely different physical interactions which control their formation and evolution. But they do look amazingly alike, both exhibiting the shape of a simple and beautiful mathematical curve known as a logarithmic spiral, a spiral whose separation grows in a geometric way with increasing distance from the center. Also known as the equiangular spiral, growth spiral, and Bernoulli's spiral or spira mirabilis, this curve's rich properties have fascinated mathematicians since its discovery by 17th century philosopher Descartes. Intriguingly, this abstract shape is much more abundant in nature than suggested by the striking visual comparison above. Logarithmic spirals also describe, for example, the arrangement of sunflower seeds, the shapes of nautilus shells, and ... cauliflower.