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模型改为第一个图的时候不会报错,可以正常运行,改为第二个后会报错,报错如下:Description
Singularity (a zero diagonal) encountered during the triangularization of the circuit conductance matrix. This occured at node 1 in subsystem 4. The simulation cannot be completed due to numerically ill-conditioned matrices.
这是什么问题呢,该如何解决