Casio fx-250HC User Manual

— 7 —
Memory Calculations
• Use the COMP mode for memory calculations.
• Use
Y, |, A { and Z for memory calculations.
Y replaces current memory contents.
• “M” appears when there is a value in memory.
•To clear memory, press
0 Y or t Y.
• Example 1: (536)(238)(562)(994)210.75
(536) 53 + 6 = Y
(238) 23 , 8 |
(562) 56 - 2 |
(994) 99 \ 4 |
(Memory recall) Z
• Example 2: To calculate the following using memory as
shown.
M
15.
M
210.75
M
13.
M
24.75
M
112.
M
59.

Casio fx-250HC Specifications

General

Type	Scientific Calculator
Display	LCD
Power Source	Solar and Battery
Battery	1 x LR44
Functions	Trigonometric, Logarithmic, Statistical

Summary

Handling Precautions

Modes of Operation

Basic Calculations Guide

Constant Calculations

Memory Functions

Fraction Calculation Guide

Percentage Calculations

Scientific Function Calculations

Sexagesimal to Decimal Conversion

How to convert between sexagesimal (degree/minute/second) and decimal number formats.

Trigonometric and Inverse Trigonometric Functions

Usage of sine, cosine, tangent, and their inverse functions in different angular units.

Hyperbolic and Inverse Hyperbolic Functions

Explains the application of hyperbolic and inverse hyperbolic functions like sinh, cosh, tanh.

Logarithms and Exponents

Covers calculations involving logarithms (base 10, base e) and exponential functions (10^x, e^x).

Roots, Reciprocals, and Factorials

Demonstrates calculations for roots, powers, reciprocals, and factorials.

Display Format Controls

How to control display formats like fixed decimal, scientific notation, rounding, and engineering notation.

Coordinate System Conversion

Covers conversion between polar and rectangular coordinate systems.

Permutation Calculations

Explains how to calculate permutations (nPr) for combinations of items.

Statistical Calculations (SD Mode)

Making Corrections During Data Input