nPr, nCr: Permutation (nPr) and combination (nCr) functions. See 
13 .
Rnd : The argument of this function is made a decimal value and then rounded in accordance with the current number of display digits setting (Norm, Fix, or Sci). With Norm 1 or Norm 2, the argument is rounded off to 10 digits. With Fix and Sci, the argument is rounded off to the specified digit. When Fix 3 is the display digits setting, for example, the result of 10 ÷ 3 is displayed as 3.333, while the calculator maintains a value of 3.33333333333333 (15 digits) internally for calculation. In the case of Rnd(10÷3) = 3.333 (with Fix 3), both the displayed value and the calculator’s internal value become 3.333. Because of this a series of calculations will produce different results depending on whether Rnd is used (Rnd(10÷3) σ 3 = 9.999) or not used (10 ÷ 3 σσ3 = 10.000). See 
14 .
Note: Using functions can slow down a calculation, which may delay display of the result. Do not perform any subsequent operation while waiting for the calculation result to appear. To interrupt an ongoing calculation before its result appears, press .
Examples
1 | sin 30°= 0.5 | 1B | Q30 |
| 0.5 |
| sin−10.5 = 30° | 1B | Q(sin−1) 0.5 |
| 30 |
2 | sinh 1 = 1.175201194 | E@(sinh) 1 | 1.175201194 | ||
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| ED(cosh−1) 1 |
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3 | ΠΠ/2 radians = 90°, 50 grads = 45° B |
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(Π)2 (DRG)A(r) 50 (DRG)B(g)
4 To calculate e5 σ 2 to three significant digits (Sci 3) (SETUP)(Sci)
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| 7() 5 C 2 | 2.97×102 | ||
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| 1 | 7() 5 2 | 2.97×102 | |
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| 5 | log101000 = log 1000 = 3 | :1000 |
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| log216 = 4 | :2 (,) 16 |
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| 2 C16 | 4 | ||
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| 6 | To calculate ln 90 (= loge 90) to three significant digits (Sci 3) | |||
(SETUP)(Sci) | 790 |
| 4.50×100 | ||
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7 | 1.2 σσ103 = 1200 | 1.2 10 3 | 1200 | ||
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| (1+1)2+2 = 16 1 1 2 2 | 16 | ||
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| (52)3 = 15625 | 5 V | 15625 | |
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| 5 32 = 2 () 5 C32 | 2 | ||
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| 1 5() 32 |
| 2 | |