PhotoMath uses your smartphone's camera to solve equations
Need a little help getting through your next big math exam? MicroBlink has an app that could help you study more effectively -- perhaps too effectively. Its newly unveiled PhotoMath for iOS and Windows Phone (Android is due in early 2015) uses your smartphone's camera to scan math equations and not only solve them, but show the steps involved.
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I wish I had this in high school.
Algebra is like the only match course I failed. This would have done wonders for me.
But now it will bring hell for teachers.
Free?
Yup! But Im not sure for how long