To achieve the function of the piecewise function, there is no class that can be used, or a custom equation class

[Mrxiongjy]

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Question

How to implement the function of the segmentation function, is there a class that can be used, or a custom equation class

[bu]
type = ParsedFunction
Expression (ti ^ 2) = 1.25 * * 270 / (10431 * 235 * 3.1416 * (4.1 * 10 ^ 3) ^ 2) + 0.001
symbol_names = 'ti'
symbol_values = 'time'
[]

[Mrxiongjy]

How to implement the function of the segmentation function, is there a class that can be used, or a custom equation class

[bu]
type = ParsedFunction
Expression (ti ^ 2) = 1.25 * * 270 / (10431 * 235 * 3.1416 * (4.1 * 10 ^ 3) ^ 2) + 0.001
symbol_names = 'ti'
symbol_values = 'time'
[]

[GiudGiud]

Hello

time is t in parsed expressions.

is 1.25 * * 270 what you wanted to have? Does not seem correct

Guillaume