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30 -20x1 - 20x2 0 0 1 0 1 1 1 0 1 1 1 0 So NOTx1 AND NOTx2 阅读全文
posted @ 2020-09-08 03:36
Zhentiw
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To classify data into multiple classes, we let our hypothesis function return a vector of values. Say we wanted to classify our data into one of four 阅读全文
posted @ 2020-09-07 03:05
Zhentiw
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Combine X1 & X1 with !X1 & !X2 to get first hidden layer as result. Then hidden layer with X1 OR X2 to get final result. 阅读全文
posted @ 2020-09-07 02:53
Zhentiw
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SQL is dynamic enough to handle queries within queries. These inner queries are called subqueries and they can be used in many different sections of a 阅读全文
posted @ 2020-09-07 01:50
Zhentiw
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const factorial = (n) => (n > 1 ? n * factorial(n - 1) : 1); const memoize = (fn) => { const cache = {}; return (...args) => { const key = JSON.string 阅读全文
posted @ 2020-09-06 17:23
Zhentiw
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With just a handful of CSS properties, we can create an intrinsically responsive photo gallery using flexbox. This is accomplished by setting our pref 阅读全文
posted @ 2020-09-05 04:03
Zhentiw
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theta(1) = S(j+1) * (Sj + 1) theta(1) = 4 * (2 + 1) = 4 * 3 阅读全文
posted @ 2020-09-04 01:51
Zhentiw
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Error Boundaries are the way you handle errors with React, and Suspense embraces this completely. Let's take a look at how to handle asynchronous erro 阅读全文
posted @ 2020-09-02 15:00
Zhentiw
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SQL gives us the power to choose what data we pull out of our table. We will use the where clause within our select statement with many operators. The 阅读全文
posted @ 2020-09-02 03:37
Zhentiw
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Today modern browsers added native support for lazy loading images, and we can benefit from it by adding one simple attribute to our img element: <img 阅读全文
posted @ 2020-09-01 22:33
Zhentiw
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