This is easily illustrated by thinking back to the way you calculated sums when you only understood addition and subtraction, and how the game changed when you learned the time-saving power of multiplication. More suddenly became possible with much less effort. “‘Mental models’ is a fancy ...
You don’t need to know how to actually do this multiplication to use the mental math trick we’re about to uncover, you just need to know that: (a+b)^2 = (a+b) x (a+b) =a^2 + 2ab+b^2 OK, great…but what does this have to do with squaring numbers in your head? How...
This memorization method begins by visualizing yourself walking through your home and remembering every single detail that you can. It’s also a greatmental exercise. However, you necessarily do not need to visualize, and can physically walk through your home too. In fact, the idea of the memo...
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Create a multiplication function without using the multiplication operator Create a function that calls an input function f every 50 milliseconds only What happens in a browser when you click a link? There are two very large numbers; each is so large that the only way to represent them is thr...
that is the product of two other functions. The rule states that the derivative of the product of two functions u(x) and v(x) is equal to u'(x)*v(x) + u(x)*v'(x). This rule is useful when dealing with functions that involve multiplication, such as polynomials or product terms...
Its a very simple multiplication problem, right?" "Well, how about 4x plus 3?" "I asked, puzzled. "Of course not. X can only be multiplied, not divided. Okay?" "Well!" I nodded vigorously. From now on, I wont get that problem wrong again. ...
it can make new ones. As long as you keep doing something over and over, like practicing scales on the piano or reciting the multiplication table 10 times over until it becomes as easy as breathing, you too can eventually learn to retain facts and remember what the normal resting heart rat...
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