HP 33s hp 33s_user's manual_English_E_HDPM20PIE56.pdf - Page 315
Parentheses Calculations, Chain Calculations
UPC - 082916001456
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Parentheses Calculations In ALG mode, you can use parentheses up to 13 levels. For example, suppose you want to calculate: 30 × 9 85 − 12 If you were to key in 30 ¯ 85 Ã, the calculator would calculate the intermediate result, 0.3529. However, that's not what you want. To delay the division until you've subtracted 12 from 85, use parentheses: Keys: 30 ¯ º y 85 Ã 12 º | ¸ 9 Ï Display: Description: No calculation is done. Calculates 85 − 12. Calculates 30/73. Calculates 30/(85 − 12) × 9. You can omit the multiplication sign (×) before a left parenthesis. Implied multiplication is not available in Equation mode. For example, the expression 2 × (5 - 4) can be entered as 2 º y 5 Ã 4 º |, without the ¸ key inserted between 2 and the left parenthesis. Chain Calculations To do a chain calculation, you don't need to press Ï after each operation, but only at the very end. 750 ×12 For instance, to calculate 360 you can enter either: ALG: Summary C-5