'when(' function
(to select
'when(' function)
| Example 1: Function has two(2) parts | |
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| Steps | Key Sequence | Screens |
| 1. Start Equation Editor | Press 'diamond' key, then F1 (for Y=) | |
| 2. Enter Condition for Equation | Press CATALOG key | |
| Scroll down to 'when(' function |
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| Press ENTER (to select 'when(' function) |
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| Press X key | |
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| Press 2nd then 5 (for MATH menu) | |
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| Press 8 (TEST submenu) | |
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| Select appropriate test | |
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| Enter x value for condition, then 'COMMA' key | |
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| 3. Input Function corresponding to this Condition | Input function, then press 'COMMA' key | |
| 4. Input Other Function | Input function, then press ')', then ENTER | |
| 5. Select Function | Use up arrow key to select function | |
| 6. Change Style of Graph | Press 2nd, then F1 (to select F6 menu) | |
| Press 2 (for Dot) | |
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| 7. Graph | Press 'diamond' key, then F3 (for GRAPH) | |
| Example 2: Function has three(3) parts | |
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| Steps | Key Sequence | Screens |
| 1. Input 1st condition and equation | Follow steps 1 – 3 above | |
| 2. Input 2nd condition and equation | Repeat steps 2 & 3 above | |
| NOTE: You are nesting two(2) 'when(' functions! | ||
| 3. Enter Third Equation | Follow step 4 above (the equation MUST end with two(2) parentheses!) | |
| 4. Graph | Follow steps 5 – 7 above | |
| NOTE: To input compound inequalties use the 'and' found in the CATALOG. That is, to input the condition 1 < x < 2 use: 1 < x and x < 2. | ||