valutazioni - 3, GPA: 4.3
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Facilità d'uso
•To delete data you have just input, press A U. Complex Number Calculations (CMPLX Mode) •Press F2 to enter the CMPLX Mode for calculations that include complex numbers. •You can use variables A, B, C and M only. Variables D, E, F, X, and Y are used for storage of the imaginary parts of values and so cannot be used by you. E-23 • Example: (2 + 3i) + (4 + 5i) Enter CMPLX Mode F 2 R 2 + 3 i T + R 4 + 5 i T = 6. Real number part A r 8. i Imaginary number part k Absolute Value/Argument Calculation • The procedure described below can be used to determine the absolute value (Abs) and argument (arg) for a complex number of the format Z = a + bi, which is presumed to exist as coordinates on a Gaussian plane. • Example: To obtain the absolute value (r) and argument (.) for the complex number 3 + 4i, when DEG is set for the angle unit mode Imaginary number axis Determine the absolute value. AAR 3 + 4 iT= Real number axis Formula Memory 5. CMPLX Determine the argument. A aR 3 + 4 iT = 53.13010235 •Formula memory lets you input a single formula in memory, and then input values for the formula's variables to calculate results. E-24 •Memory can hold a single formula, up to 79 steps long. This function can be used in the COMP or CMPLX mode only. •Note that the formula is actually stored in memory when you press the C key in the sequence below. • Example: To save the following formula, recall it, and then use it to calculate a result: Y = X2 + 3X – 12 Input the formula. p y p u p x K+ 3 p x , 12 Store it in memory. C Input a value for its variable. 7 = = 8 = Y=X2 +3X-12 0. X? 0. 58. X? 7. 76. •Formula memory is cleared whenever you start a new calculation, change to another mode, or turn off power. Metric Conversions (fx-570W/fx-991W) •A total of 20 different conversion pairs are built-in to provide quick and easy conversion to and from metric units. •See the Conversion Pair Table on page 26 for a complete list of available conversion pairs. • Example: To convert 31 inches to centimeters CONV 31 A c CONV 1 01 01 is the inches-to-centimeters conversion pair number. 0. 31i n cm = 31in cm 78.74 E-25 •Conversion Pair Table Based on ISO Standard (1992) data and CODATA Bulletin 63 (1986) data. Number Conversion Pair Number Conversion Pair 01 in > cm 21 oz > g 02 cm > in 22 g > oz 03 ft > m 23 lb > kg 04 m > ft 24 kg > lb 05 yd > m 25 atm > Pa 06 m > yd 26 Pa > atm 07 mile > km 27 mmHg > Pa 08 km > mile 28 Pa > mmHg 09 n mile > m 29 hp > kW 10 m > n mile 30 kW > hp 11 acre > m2 31 kgf/cm2> Pa 12 m2 > acre 32 Pa > kgf/cm2 13 gal (US) >r rrrrr 33 kgf•m > J 14 r rrrrr > gal (US) 34 J > kgf•m 15 gal (UK) >r rrrrr 35 lbf/in2 > kPa 16 r rrrrr > gal (UK) 36 kPa > lbf/in2 17 pc > km 37 °F > °C 18 km > pc 38 °C > °F 19 km/h > m/s 39 J > cal 20 m/s > km/h 40 cal > J Scientific Constants (fx-570W/fx-991W) •A total of 40 commonly-used scientific constants, such as the speed of light in a vacuum and Plan...
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