### Author Topic: Branch defined functions NSpire  (Read 1459 times)

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#### Munchor

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##### Branch defined functions NSpire
« on: March 17, 2011, 11:49:37 am »
In the 8x Series I can:
Code: [Select]
Y1= (2.5X)(X>10)Y2 = (5X)(X<=10)
This meaning:
If x>10, y=2.5x
If x<=10, y=5x

How can I do this on the nspire?

#### Goplat

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##### Re: Branch defined functions NSpire
« Reply #1 on: March 17, 2011, 12:41:36 pm »
try: y=piecewise(2.5x,x>10,5x,x<=10
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#### Munchor

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##### Re: Branch defined functions NSpire
« Reply #2 on: March 17, 2011, 05:12:17 pm »
I managed to do it.
Library_Button>>>3>>>Branch defined functions icon

Worked

#### phenomist

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##### Re: Branch defined functions NSpire
« Reply #3 on: March 17, 2011, 07:04:15 pm »
Oh, and if you need to actually take the value on the piecewise graph without having to switch between graphs, you can add them together; e.g. Y1 = (2.5X)(X>10)+(5X)(X<=10). (This is on the TI-83/84)
« Last Edit: March 17, 2011, 07:04:36 pm by phenomist »
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