HP 33s hp 33s_user's manual_English_E_HDPM20PIE56.pdf - Page 37

For example, in the number 14.8745632019, you see only "14.8746" when the display mode is set to FIX 4, but the last six digits ("632019") are present internally in the calculator. To temporarily display a number in full precision, press | . This shows you the mantissa (but no exponent) of the number for as long as you hold down . Keys: Display: Description: {%} 4 45 ‘ 1.3 z { } 2 {} 2 {} {%} 4  |  (hold) )  )        Displays four decimal places. Four decimal places displayed. Scientific format: two decimal places and an exponent. Engineering format. All significant digits; trailing zeros dropped. Four decimal places, no exponent. Reciprocal of 58.5. Shows full precision until you release  Fractions The HP 33s allows you to type in and display fractions, and to perform math operations on them. Fractions are real numbers of the form a b/c where a, b, and c are integers; 0 ≤ b < c; and the denominator (c) must be in the range 2 through 4095. Entering Fractions Fractions can be entered onto the stack at any time: 1. Key in the integer part of the number and press . (The first  separates the integer part of the number from its fractional part.) Getting Started 1-21