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It is He who sends down rain from the sky: from it ye drink, and out of it (grows) the vegetation on which ye feed your cattle. 10 He causes to grow for you thereby the crops, olives, palm trees, grapevines, and from all the fruits. Indeed in that is a sign for a people who give thought. 11 And He hath constrained the night and the day and the sun and the moon to be of service unto you, and the stars are made subservient by His command. Lo! herein indeed are portents for people who have sense. 12 And whatsoever He hath created for you in the earth of divers hues, lo! therein is indeed a portent for people who take heed. 13 And He it is Who has subjected the sea that you may eat fresh fish from it and bring forth ornaments from it that you can wear. And you see ships ploughing their course through it so that you may go forth seeking His Bounty and be grateful to Him. 14 And He hath cast into the earth firm hills that it quake not with you, and streams and roads that ye may find a way. 15 and He has set other landmarks in the earth. And by the stars too do people find their way. 16 Then is He who creates like one who does not create? So will you not be reminded? 17 For, should you try to count God's blessings, you could never compute them! Behold, God is indeed much-forgiving, a dispenser of grace; 18 God knows all that you conceal and all that you reveal. 19 , As for those they call besides God, they cannot create a thing, and have themselves been created. 20 They are not living but are dead. They can not know when they will be raised. 21
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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.