如何在Dart方程中找到数学变量

Question

我需要知道如何在dart中找到未知变量来求解数学方程。 B是未知变量，已知变量是已知变量。

double B = 0.0;
double known = 1423.0;
known = B -
    ((B * 0.105 + B * 0.005 + B * 0.055) +
        ((B - (B * 0.105 + B * 0.005 + B * 0.055)) * 0.16));

Answer 1

我不知道有任何这样的软件包可以求解方程式，但是您可以像在数学中一样简化方程式本身。下面是这样的解决方案-

known = B -
((B * 0.105 + B * 0.005 + B * 0.055) +
    ((B - (B * 0.105 + B * 0.005 + B * 0.055)) * 0.16));

known = B -
    ((B * 0.165) +
        ((B - (B * 0.165)) * 0.16));
known = B -
    ((B * 0.165) +
        ((B * 0.835) * 0.16));
known = B -
    ((B * 0.165) +
        (B * 0.1336));
known = B -
    (B * 0.2986);
known = B * 0.7014;
B= known / 0.7014;