Accuracy, functionality, and dependability make this pocket-sized calculator a great tool for engineers, surveyors, college students, scientists, and medical professionals. Features include 31KB of memory, RPN and algebraic data-entry (no competitor has both of these), a powerful two-line display, and the time-saving HP Solve application.
Features:
Efficiently express calculation sequences without parenthesesreducing the number of keystrokesusing RPN
Write and solve equations for any variable without rewriting the original equation (you can edit, undo, and delete) using the HP Solve application
Program using the 31KB RAM user memory
Get accurate calculation results with the 21-digit internal precision
Adjust the contrast on the powerful two-line display
Easily carry and hold; it's a handy size and has comfortable rubber side grips
Basic warranty: One-year limited warranty
Specifications:
* Pocket-sized programmability
31KB user memory
keystroke programming
algebraic and RPN data entry
HP solveapplication
GTO, LBL, SOLVE, INPUT, VIEW, ISG,DSE, FN, RTN, PSE key
27-independent memory/storage and recall math
statistics programs: curve fitting, straight line, exponential, logarithmic and power
* Statistical functions:
one/two variable statistics
linear regression
SUM: n, Sx, Sy, Sx2, Sy2, Sxy
S, s :, Sx, Sy, sx, sy
x, y:x, y, xw
L.R.: r, m, b, x', y'
* Base-n function
binary, octal, decimal, and hexadecimal number calculation and conversion
complement calculation
* Mathematical functions
trigonometric, inverse-trigonometric, hyperbolic
polar-rectangular coordinate conversion
power, square root, square, cube root, cube, reciprocal
logarithmic and exponential
factorial
* Fraction mode
/c function
FDISP function: fraction, decimal conversion
most precise fraction
factors of denominator
fixed denominator <
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HP 33S SCIENTIFIC CALCULATOR 
