A-A-50225B
2.2.3 Power source. The calculating machine shall utilize replaceable or rechargeable batteries or power pack. The calculating machine shall be capable of operating from an externally supplied 115V, 60 Hz source and perform all specified functions while recharging. The recharger AC adapter shall have a power cord that is a minimum of 6.00 feet in length and meet the UL certification or equivalent.
2.2.4. Carrying case. The carrying case shall provide protection from scratches and spills.
2.3 Operating capabilities and functions. The calculating machine shall perform, as a minimum, the following operations:
a. Floating and fixed decimal.
b. Scientific notation (8-digit mantissa, 2-digit exponent). c. Basic arithmetic functions (+, -, x, ÷).
d. Algebraic functions (x2, yx, n, √x, ex, ln x, Log x, 10x).
e. Trigonometric functions (sin, cos, tan, and inverses) in degrees, radians, or grads. f. Hyperbolic functions.
g. Mean and standard deviation. h. Linear regression.
i. Degrees/radians/grads and conversions. J. Factorial function.
k. 60 data memories, direct and indirect.
2.4 Accessories.
2.4.1 Required accessories. The calculating machine shall be provided with the following accessories:
a. Recharger/AC adapter. b. Carrying case.
c. Owner's handbook. d. Programming guide.
2.4.2 Optional accessories. The calculating machine shall be provided with the following optional accessories when specified (see 6.2):
a. Printer.
b. Software package.
3. REGULATORY REQUIREMENTS.
3.1 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or environmentally preferable materials should be used to the maximum extent possible provided that the material meets or exceeds the operational and maintenance requirements, and promotes economically advantageous life cycle costs.
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