algebraic substitution

 maple's algsubs function (algebraic substitution)



수식 치환

algsubs(a=b, eq1)

eq1식에서 a를 b로 치환한다.





isolate : 지정한 문자에 대해 풀어준다.

isolate(eq1, a)  식eq1에서 a에 대해 풀어준다.

https://en.smath.com/forum/yaf_postst23606_how-can-i-do-like-this.aspx



another function






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Biaxial bending interaction diagrams

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Biaxial bending interaction diagrams for reinforced concrete column design solution The steps to calculate biaxial flexural strength of a rectangular reinforced concrete column for a given nominal axial strength and moment ratio of biaxial bending moments are as follows: 1. assuming a value for the angle of the neutral axis (a) and the neutral axis depth (c) to calculate the strain values in each reinforcement layer 2. Calculate the forces values in the concrete (Cc) and reinforcement layers (Fst) 3. Calculate Pn, Mnx/Mny using the following equations the procedure above should be repeated until the calculated Pn, and Mnx / Mny are euqal to the given Pn, and Mnx/Mny. The following figure demonstrates the procedure explained above: 출처: Biaxial Bending Interaction Diagrams for Rectangular Reinforced Concrete Column Design (ACI 318-19) Structure Point https://skyground21.tistory.com/entry/Biaxial-bending-interaction-diagram
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