Support

If you wish to support my effort, you may do so by making a donation via PayPal or Patreon. The digital currencies, Bitcoin (BTC), Ethereum (ETH), and Litecoin (LTC) are also accepted. Whether it's a big or small donation, I will greatly appreciate it. Tell your friends, classmates, colleagues, and anyone else you think might benefit about this website. Another way to support my effort is to click on some of the ads you see around the website. One more way to support the site is to post this flyer in places where STEM students are likely to see it.

If you do make a donation, then please let me know what book in the index you would like to see more solutions for.

PayPal:


Patreon:
Become a Patron!
Bitcoin (BTC) Address: 16AbErQ2PRQf5bssM8K6sJy59CtrxNXEuZ

Ethereum (ETH) Address: 0x5deC41AE515b258535F11C6528E665a22a6e4421

Litecoin (LTC) Address: LLE7EGccv4JJKevFwXJwk4KNDzH9yJ2Mik