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List of model equations used in IP3 step function (modified from [21])
| Equation | Biological significance |
|---|---|
| stepupf=heav(t−init) | Heaviside step up function |
| stepdownf=heav(t−(init+duration)) | Heaviside step down function |
| IP3=baseline+amplitude∗(stepupf−stepdownf) | IP3 step function |
