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Date: 19-5-2018
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Date: 24-3-2019
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Date: 15-6-2019
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The -variation is a variation in which the varied path over which an integral is evaluated may end at different times than the correct path, and there may be variation in the coordinates at the endpoints.
The -variation is a variation in which the varied path in configuration space terminates at the endpoints representing the system configuration at the same time
and
as the correct path; i.e., the varied path always returns to the same endpoints in configuration space, so
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دراسة: عدم ترتيب الغرفة قد يدل على مشاكل نفسية
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علماء: تغير المناخ تسبب في ارتفاع الحرارة خلال موسم الحج
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جهود مكثفة وطباعة عشرات الآلاف من المنشورات .. استعدادات العتبة العلوية المقدسة لعيد الغدير الأغر
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