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And verily in the heaven we have set mansions of the stars, and We have beautified it for beholders. 16 and have protected them against every accursed satan 17 Except the ones who listen on the sly, yet they are chased away by a shooting flame. 18 And the earth - We have spread it out wide, and placed on it mountains firm, and caused [life] of every kind to grow on it in a balanced manner, 19 and provided thereon means of livelihood for you [O men] as well as for all [living beings] whose sustenance does not depend on you. 20 And there is not a thing but with Us are the stores thereof. And we send it not down save in appointed measure. 21 We send fertilizing winds, and then cause rain to descend from the sky, providing you abundant water to drink even though you could not have stored it up for yourselves. 22 It is We who give life, and make to die, and it is We who are the inheritors. 23 And indeed, We know the first generations of you who had passed away, and indeed, We know the present generations of you (mankind), and also those who will come afterwards. 24 and it is your Lord who will gather them. He is Wise, Knowing. 25
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ملاحظات وتعليمات
Notes and Instructions
كيف تعمل منظومة تمارين الحفظ؟ عند أدنى مستوى 0، تكون كل الكلمات ظاهرة. بينما يُخفي أعلى مستوى 9 كل الكلمات. فكيف تعمل المستويات المتوسطة، مثل 3، على سبيل المثال؟ قد تعتقد بأن المنظومة تخفي 3 من كل تسع كلمات بدقة. ليس تماما! في المستوى 3، لكل كلمة فرصة اختفاء بنسبة 3 من 9، و6 من 9 لتكون ظاهرة. بمعنى آخر، من الممكن، ولكن باحتمال شبة معدوم، أن تكون جميع كلمات المستوى 3 مخفية، أو أن تكون جميعها ظاهرة! وكذلك أيضًا، ففي المستويات المتوسطة، وبما يتناسب مع مستوى الصعوبة، يمكن أن تكون المخابئ غير كاملة أو شفافة جزئيًا بحيث تظهر الكلمات جزئيًا تحتها.
How does the memorization exercise algorithm work? At the lowest level 0, all words are visible. While the highest level 9 hides all words. What about at mid-level, like 3, for example? You might think that the algorithm hides precisely 3 out of every nine words. Not quite! At level 3, each word has a 3 out of 9 chance to hide, and 6 out of 9 to be visible. In other words, it is possible, but highly unlikely, for all words at level 3 to be hidden, or, that all of them to be visible! Also, at mid-levels, and in proportion to the difficulty level, hideouts can be partially incomplete or transparent so that words may be partially visible underneath.
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