Rockwell 61R Owner'S Manual Download Page 1

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Summary of Contents for 61R

Page 1: ...Rockwell International where science gets down to business Litho in U S A 2520 Q 62 R2 407...

Page 2: ...ell 61 R has been de signed not only to perform the four basic functions of arithmetic but also to compute natural and com mon logs and anti logs trigono metric and inverse trigonometric functions squ...

Page 3: ...splay _ _ 8 Explanation of Switches and Indicators 9 Operation 10 Basic Operations _ 13 Repeat Operations _ __ 17 Constant Operations _ 18 Clear Operations 23 Overflow Conditions 27 Wrap Around Decima...

Page 4: ...ORMATION BEFORE OPERATING YOUR CALCULATOR Your Rockwell 61 R Advanced Slide Rule calculator is supplied with rechargeable internal batteries and a battery charger Part No 328R07 001 DO NOT OPERATE YOU...

Page 5: ...ator and the charger and nickel cadmium batteries supplied with it 1 Use only the charger fur nished with vour calculator 6 J 2 Do not charge the batteries continuously as battery deg radation could o...

Page 6: ...s greater than one The re sults of the calculations are displayed instantaneously for most calculations NOTE Computations using very large or very small numbers may be performed on your slide rule cal...

Page 7: ...Depressing the 0 key places the decimal point in your entries ARITHMETIC FUNCTION KEYS ADD EJ SUBTRACT Ii MUL 10 TIPLY G DIVIDE Depressing any of these four keys selects the next operation to be perf...

Page 8: ...accordance with the function identified above the key NOTES The secondary functions of the keys are described under Key Secondary Functions page 33 Techniques for recovery of data following unintentio...

Page 9: ...ulator is used to solve complex mathematical problems with a minimum of key depressions The examples also illustrate how the arithmetic function keys execute preceding operations and cause intermediat...

Page 10: ...eyboard Entry Display j 17 4 17 4 3 7 3 7 0 21 1 21 1 32 4 32 4 0 53 5 Comments Not necessary to re enter 21 1 REPEAT OPERATIONS The repeat operation capability of your Rockwell 61 R is a time saving...

Page 11: ...ered after the last arithmetic function key depressed is always saved as the constant laddend subtrahend multiplier or divisor The constant function is the last function key depressed before depressin...

Page 12: ...roblem Constant Subtrahend 9 5 4 Keyboard Entry 9 5 4 9 EJ5 11 5 6 11 11 5 6 Display 9 5 4 11 6 1 Problem Constant Multiplier 12 x 4 48 Keyboard Entry 12x4 48 12 04 3x4 12 3 3 x 4 12 Display 12 4 48 3...

Page 13: ...nt 3 Constant 3 Constant 3 Constant 2 Constant 2 Constant 2 Display 5 3 8 24 2 22 11 Mixed Operations with Constants Problem 5 3 2 11 Keyboard Entry 5 3 o EJ 2 8 CLEAR OPERATIONS 1 One depression of t...

Page 14: ...the calculator except the memory Problem Clear Calculator Except Memory Keyboard Entry Display Comments 2 2 m 2 g O Entry cleared g O Calculator cleared tn 3 Depressing the key during an overflow see...

Page 15: ...h causes the Over flow Indicator _ to light and all keys except to become inoperative 1 Any answer or subtotal exceeding 8 digits to the left of the decimal point re9ardless of its arithmetic sign abs...

Page 16: ...nce to clear the overflow condition but you must multi ply the final problem answer by 108 100 000 000 or move the decimal point 8 places to the right Any numbers subsequently added or subtr8cted must...

Page 17: ...he appro priate power of 10 determined as a second step Problem 2 x 10 6 X 5 X 10 5 10 X 10 11 Keyboard Entry Display 2 2 05 5 EJ 10 Negative Number Ind icator Iights Comments 48 6 8 Display 4 4 16 3...

Page 18: ...e Rule to perform the second function of the next key depressed The secondary function is cancelled after execution of all second function operations except ARC see page461 or DR see page61 Operation...

Page 19: ...mber in memory Any number previously in memory is destroyed X M Exchange number being displayed with number in memory M X2 Add square of contents of displayed number in memory display is not altered C...

Page 20: ...3 x 4 executed and addi tion operation established 1Il X M 17 17 Contents of memory reo called to display original number moved to work ing register EJ 29 17 12 17 executed I X M 17 29 Contents of me...

Page 21: ...Find area A of a circle 6 feet in diameter D Formula A 11 2 A 28 274332 Keyboard Entry 6 o o I 4 El Radians r Comments Degrees dl Display 200 3 1415926 628 31852 180 3 4906584 Problem Degrees to Radi...

Page 22: ...ts 30 0 5 Display lSI N TRIGONOMETRIC FUNCTIONS SIN COS TAN Depressing the key and then the ISIN ICOS or TANI key causes the calcu lator to compute and display the trigonometric function for the value...

Page 23: ...d Entry 300 2 TAN Display 300 2 2 185042 Comments DEG RAD switch in DEG position DEG RAD switch in RAD position Negative Number Indicator lights Problem sin radians 0 5 Koyboard Entry Display 11 3 141...

Page 24: ...in DEG position Keyboard Entry X M EI Display 6 6 803847 Comments 0 267949 2 2 267949 3 6 803847 TAN 1lJ2 III 3 13 Some chain operations using scientific and arithmetic functions can be accom plished...

Page 25: ...umber in the display to be interpreted as the value of a trigono metric function and the inverse trigonometric function the angle to be cal culated and displayed Ol Problem sin 10 5 30 Keyboard Entry...

Page 26: ...Square roots Model51R Universal Converter Electronic Calculator All Basic Answer features PLUS fully addressable memories 2 place or floating decimal Automatic constants Fraction calculations 224 fixe...

Page 27: ...radians Keyboard Entry 1 I ARC TAN IJIX M I rr 02 I X M EJ SQUARE ROOT IX Depressing the I and IX keys causes the square root of the number being displayed to be computed and displayed gJ ProQlem J 8f...

Page 28: ...ocal of the number being displayed to be computed and displayed Problem io 0 05 IV Keyboard Entry 20 1 J 1 x Display 20 0 05 The l x function can also be used in chain operations Probl em iJ fcJ 0 15...

Page 29: ...FUNCTION lin X Depressing the and lin X keys causes the natural logarithm of the displayed number to be computed and displayed Problem In 1323 3 In 32 10 397211 Keyboard Entry 32 In XI 03 EI Display...

Page 30: ...tered to the power y second number enteredI for any real vaiues of y Depressing the E and XY keys causes the displayed number to be taken as the value of X and the natural log of X to be com ted and d...

Page 31: ...465737 5 5 mil xl 0 2 2 sin Y x can be computed easily Problem sin 1 3 38 0 850708 Keyboard Entry Display 38 38 Comments In 32 Comments DEG RAD switch in DEG position 51 N 0 615661 1 XY 0 485058 to 3...

Page 32: ...mediately after an unintentional J key clears the calculator of secondary function operation Problem 4 x 3 12 Keyboard Entry 4 03 J CF 13 Display 4 3 3 3 12 Comments Error Did not want to press J J Da...

Page 33: ...different fields of interest to familiarize you with your calculator We recommended that you gain familiarity with your Rockwell61R by working the sample problems MATHEMATICS O l Many problems can be...

Page 34: ...ents o Display and memory cleared 100 X added to memory m 10 100 11 fJ M X2 11 221 X added to memory m 21 221 Xl X 2 displayed 31m 3 221 Negative Number Indicator lights fJ M X2 1 3 230 X added to mem...

Page 35: ...EJ 5 750 I 13 50 750 M n EX displayed EX I 13 500 750 M2 n n displayed EX 12 I M I 500 250 EX 2 n subtracted from memory I X MI 250 250 III 4 o I fl 1 III 5 I v X1 o 4 62 5 7 9056941 5 2 2360679 3 535...

Page 36: ...ormula co C Cc c 32 42 c 5 Keyboard Entry X M 3 I J 1M X2 41 1M X2 1 Display O O 3 4 A 4 C I J X M I J y X 25 5 25 Sum of squares recalled from memory 25 Hypotenuse c Where x 24 and y 70 J 71 07536 V...

Page 37: ...476 X2 added to memory 2 9166666 5476 Y X I II ARC TAN 71 07536 5476 Angle a degrees a IIJ X M 5476 5476 y2 X2recalled from II v X memory 74 5476 Magnitude of vector V Problem Law of Sines A Where A 3...

Page 38: ...75 75 Length of side a N B 0 7 sin B EJ ARC SIN 44 42701 Angle B in degrees B Problem c 5 Law of Cosines A b 4 Formula a2 c2 b2 2cb cosA w Keyboard Entry EJ X M 3 R Given three sides of the above a 3...

Page 39: ...0 32 c b l 2 2 32 G 40 32 2 cb illIX M 32 32 c2 b2 a2 recalled from memory EJ 40 32 2 cb G 0 8 32 cos A o J ARC COS 36 8699 32 Angle A degreesI Problem Hyperbolic Functions sinh 2 1 4 021856 Formula s...

Page 40: ...m l x 0 2725319 e ill 3 9418269 e e a 2 2 B 1 9709134 cosh a Problem Hyperbolic Functions tanh 0 655794 e e a Formula tanh a e e a Kp yboard Entry Display Memory Comments I J 11 3 1415926 84 4 B 0 785...

Page 41: ...1 3356469 1 1 Formula sinh 1 a In la Va2 1 Keyboard Entry Display 1 1 IlJ IX MI 1 1 3356469 1 3356469 1M X2 1 3356469 m 1 3356469 ex IlJ IX M IlJ h X IlJ lin XI 2 7839526 1 668518 3 0041649 1 1 2 7839...

Page 42: ...0 800003 0 7887417 cosh 1 a a Problem Inverse Hyperbolic Functions tanh 1 0 7615942 1 Formula tanh 1a In l Keyboard Entry Display Memory Comments 19WIX M O 0 1 1 0 fJ X M 1 1 W 1 1 7615942 0 7615942...

Page 43: ...28 ohms q 1 1 1 q R R2 Ra Keyboard Entry 0 isplay 5 5 o 1 Ix 0 2 m 0 2 20 20 o 1 Ix 0 05 Problem RC Network A step voltage V of 25 volts is applied across series RC network with R 50 000 ohms and C 0...

Page 44: ...13 25 23 755325 Comments t 15 1000 0 015 seconds C 0 1 106 1 0 0000001 farads tiC R tlRC tlRC a t R C 1 _ e t RC VI Voltage across capacitor V cl Problem Simply Supported Beam U1 A beam simply support...

Page 45: ...80 5 X 14 108 10 10 Load w G 800 5 x w 14 108 5 wi 1 4 108 384 Entry scaled by 108 5 w 1 4 1384 E Moment of inertia I Deflection Ye in inches 384 2 0833333 0 3 6 9444443 1 2 5 7870369 384 G 3 G 1 2 o...

Page 46: ...00000 1000000 1000000 5000000 5000000 5000000 5000000 5000000 Memory cleared Bending moment M M2 added to memory Torque T T2 added to memory T2 M2 02 M2 M y T 2 M 2 G 51777 086 5000000 161M 0 2 M2 I l...

Page 47: ...decibels db where reference pressure Pol is 2 x 10 4 fl bar Formula P anti log g log Po P 893 367 fl bars 0 o Keyboard Entry Display Memory Comments 0002 0 0002 Reference pressure J l bar log Po Negat...

Page 48: ...d the compu tation time greater than 3 seconds Tan X accuracy may be less than six digits for 89 5 L lIXI 1800n L 90 5 corresponding radians where n 0 1 2 3 _ If X is 92 large enough to cause an overf...

Page 49: ...00001 LX Lin 99999999 approximately the range of the argument for 10 is 6 LX 8_ It the value of X is outside of these ranges the calculator will overflow or underf low SQUARE ROOT FUNCTION y Xl The ra...

Page 50: ...ulators returned without proof of purchase date will be serviced out of warranty at our prevailing service rates 96 This Warranty does not extend to any article which has been subject to misuse neglec...

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Rockwell 61R, Owner'S Manual

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