HP 15C Uživatelský manuál stáhnout pdf (Strana 91)

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Section 8: Program Branching and Controls 91

of this loop can be controlled by a conditional branch, an ¦ instruction

(written into the loop), or simply by pressing any key during execution

(which stops the program).

Conditional Tests

Another way to alter the sequence of program execution is by a conditional

test, a true/false test which compares the number in the X-register either to

zero or to the number in the Y-register. The HP-15C provides 12 different

tests, two explicit on the keyboard and 10 others accessible using |

T n.

1. Direct: | £ and | ~ .

2. Indirect: | T n.

Test

x ≠ 0

x = y

x > 0

x ≠ y

x < 0

x > y

x ≥ 0

x < y

x ≤ 0

x ≥ y

Four of the conditional tests can also be used for complex values, as explained in section 11 on page 132.

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