33 lines
703 B
Python
33 lines
703 B
Python
from .functions import defun_wrapped
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@defun_wrapped
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def squarew(ctx, t, amplitude=1, period=1):
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P = period
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A = amplitude
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return A*((-1)**ctx.floor(2*t/P))
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@defun_wrapped
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def trianglew(ctx, t, amplitude=1, period=1):
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A = amplitude
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P = period
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return 2*A*(0.5 - ctx.fabs(1 - 2*ctx.frac(t/P + 0.25)))
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@defun_wrapped
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def sawtoothw(ctx, t, amplitude=1, period=1):
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A = amplitude
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P = period
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return A*ctx.frac(t/P)
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@defun_wrapped
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def unit_triangle(ctx, t, amplitude=1):
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A = amplitude
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if t <= -1 or t >= 1:
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return ctx.zero
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return A*(-ctx.fabs(t) + 1)
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@defun_wrapped
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def sigmoid(ctx, t, amplitude=1):
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A = amplitude
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return A / (1 + ctx.exp(-t))
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