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May 27, 2014, 11:26
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step in expressions What does it do?
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#1 |
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Senior Member
Hydreaulic structures
Join Date: Sep 2012
Posts: 283
Rep Power: 14  |
 hi dear i want know, step in expressions What does it do and what????? i.e: UpVFAir step((y-UpH)/1[m]) step in up expressions what is operate?????? explain me about step? thanks a lot |
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May 27, 2014, 16:00
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#2 |
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Senior Member
Edmund Singer P.E.
Join Date: Aug 2010
Location: Minneapolis, MN
Posts: 511
Rep Power: 20 |
When y<UpH step =0
When y>UpH step =1 When y=UpH step =0.5 |
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May 27, 2014, 16:55
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#3 |
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Senior Member
Erik
Join Date: Feb 2011
Location: Earth (Land portion)
Posts: 1,167
Rep Power: 23 |
Singer is right, but a little more general:
when the value in parentheses is positive, the step function = 1. if negative, the step fuction will be = 0. If the value in parentheses is 0, step function will be 0.5. |
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May 28, 2014, 10:09
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#4 |
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Senior Member
Hydreaulic structures
Join Date: Sep 2012
Posts: 283
Rep Power: 14 |
dear evcelica
thanks very much for reply my question |
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May 28, 2014, 10:10
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#5 |
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Senior Member
Hydreaulic structures
Join Date: Sep 2012
Posts: 283
Rep Power: 14 |
dear singer1812
thanks a lot |
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