HP 50g HP 50g_user's manual_English_HDPSG49AEM8.pdf - Page 20

Let's try some other simple operations before trying the more complicated expression used earlier for the algebraic operating mode: 123/32 42 3√(√27) 123`32/ 4`2Q 27R3@» Note the position of the y and x in the last two operations. The base in the exponential operation is y (stack level 2) while the exponent is x (stack level 1) before the key Q is pressed. Similarly, in the cubic root operation, y (stack level 2) is the quantity under the root sign, and x (stack level 1) is the root. Try the following exercise involving 3 factors: (5 + 3) × 2 5`3+ Calculates (5 +3) first. 2X Completes the calculation. Let's try now the expression proposed earlier: 3 ⋅ ⎜⎛5 − 1 ⎟⎞ ⎝ 3 233 ⋅ 3 ⎠ + e 2.5 3` Enter 3 in level 1 5` Enter 5 in level 1, 3 moves to level 2 3` Enter 3 in level 1, 5 moves to level 2, 3 to level 3 3* Place 3 and multiply, 9 appears in level 1 Y 1/(3×3), last value in lev. 1; 5 in level 2; 3 in level 3 - 5 - 1/(3×3) , occupies level 1 now; 3 in level 2 * 3 × (5 - 1/(3×3)), occupies level 1 now. 23`Enter 23 in level 1, 14.66666 moves to level 2. 3Q Enter 3, calculate 233 into level 1. 14.666 in lev. 2. / (3 × (5-1/(3×3)))/233 into level 1 2.5Enter 2.5 level 1 !¸ e2.5, goes into level 1, level 2 shows previous value. Page 1-9