INTRODUCTION ihe Bowmar MX 100 Scientific Brain utilizes recent deveiopments in solid-staie integrated circuitry to provide a vast extension of conventional slide-rule capabilities, with far more accuracy. It is also more versatile, and it is compact enough to be pocketable. Jt replaces tedious and eye-straining correlation of finely inscribed slide-rule scales with a simpler lou ching of buttons on a keyboard. At the same time, it reduces determination of a.
7. A key for the exchange of contents of the display te~Jister (x regis tor) and working register (y register) t8 In addition !o these functions, your calculator has memory with tho foflowin(J meaDs of access: m 1. A storage key tor storing a displayed numeral in the memory. 2. A recall key for withdrawing and displaying the content of the rn8mOty without losing it tram the memory. 3. An exchange key ~ tor 8Kchanging t:!m contents 01 the display and memory registers. 4.
CONTROLS & INDICATORS - 5. 4.. ~=- NOTE: Descriptions that follow wili be beller understood jf you take a moment to learn these basic facts. First, two separate registers are provided for retaining the numbers you enler into the Calculator for an aritt,metic oper"atlon. One is the Display Register which is aiso refened to as the x Register. The other is Working Register or y Register. Any number you enter is keyed direcily into the Display IX Register) for yOU! visual review.
1. "ON" Switch A two position sllde switch that turns the Calculator "ON" & enters '1' e' o Raises e(2.71828) to power of x shown on the Display, up to a limit of = 18.42. "OFF". 2. A two position slide OEG/RAD Switch switch that selects degrees or radians for the expression of angles. 3. Key \/i Keyboard 25 keys that may be categorized into groups of data keys, arithmetic operation keys, memory operation keys, and command function keys as tollows: A.
enters '7' SiN D cos enters '8' D Computes the sine, with proper sign, of any displayed angle, whether in degrees or radians and whether positive or negative. Computes the cosine, with proper sign, of any displayed angle, whether in degrees or radians and whether positive ar negative. enters '9' TAN D Computes the tangent, with proper sign, of any displayed angle, whether in degrees or radians and whether positive or negative. B.
It clears the overflow sign with single depression. Enables a number y to be raised to a power x (see pertinent Instructions) . a Shifts between Function and Character Modes ot dual-purpose keys. A dual-purpose key that changes sign of the Displayed number in the Character Mode, and displays 7T (3.1415926) in the Function Mode. Decimal Point Indicator Automatically appears to the right of any number entered, unless inserted in another sequence by use of the Decimal key.
B. Then you enter 13 ins.tead of 12. 4. To enter a mathematical computation Entry of a computation is greatly simplified when it is first converted to algebrnic form. Display is: A mistake! C. To clear 13, touch the ~ key once only. Display is: 1. + 2. ~ 438 296 3. 438 x 296 4, 296) 438 In algobraic form, these computations are: 1. 3, D. Then enter 12. Display is: E, Finally, touch the answer. Display 'IS: 438 2\}6 438 + 296 = 438 x 296 ~ 2. 438 - 296 ~ 4.
6. Dual purpose keys SAMPLE CALCULATIONS ADDITION Example #1: To calCUlate 16.39 + 9.83 Dual purpose keys are identified by dual labels. One label is directly on each keyface and is referred to as Character Label. The other label is directly abo\'€ each key and is the Function label. Thus, the dual labels suggest operation in either the Character Mode or the Function Mode. Do these steps b. Enter 16.39 16.39 d. Enter 9.83 9.83 I!I e. Touch D Ex.
SUBTRACTION Example ;'3: To calculate 12.81 - 3.6 = Do these'Tsteps display will be Example ii5: To calculate 62 - 82 + 10 - 40 Do these steps ~ twice a. Touch a. Touch ~ b. Enter 12.81 12.81 a c. Touch 12.81 = display will be twice b. Enter 62 c. Touch a d. Enter 3.6 III e. Touch d. Enter 82 Example ::4: To calculate 23 - 6 Do these steps fi.J1 a. Touch 9.21 Answer + 2.1 e. Touch f. -5~ display wU\ be twice I. Touch a a, Touch a a a Answ€r W 10. - 50. twice 29.
8. Touch II Answer 1656.58 DIVISION Example #7: To calculate 61 -+- 3 -+- 9 = Do these steps display will be a. Touch ~ twice b. Enter 81 c. Touch II REPEATED OPERATIONS Example #8: Arithme1ic operations (add, subtract. mUltiply, and divide) may be repeated on a single r1umber as follows (using 1he number 3 as an example). Initial steps for each operation are a. Touch W. 1wice to get d. Enter 3 e. Touch b. Enter 3 II then do these steps f. Enter 9 g. Touch II to get Answer c.
CHAIN OPERATIONS (Mixed Arithmetic) CONSTANT OPERATIONS Addition, subtraction, mutipfication, and division by a constant may be performed as follows (using the number 'N' as the constant). A. Addition Example #9: To calculaltiI3+26) 15..-::,_49,_ 38 display will be Do these steps a. Touch ~ Ex.ample #10: twice j I b. Enter 73 c. Touch a f. E:I . Touch II f. 1485. II Touchl!"- iii Touch Ell N + X. g. Enter the number Y h. Touch 1436. iii N + Y. i. Enter the number Z J.
c. Touch a D. Division Example #13: a. Touch d. Enter N e. Touch f. iii g. Touch Touch e. Touch II c. Touch II x- • N. h. Enter the number Y !. d. Enter m II m b. Enter Enter the number X f. II! Y - N. twice Enter the number X g. Touch II j. etc. h. E:nter the number Y C. Multiplication i. Touch Example ,~12: a. Touch t1I c. Touch twice f. g EI / ' Y. II A. Sine Example #14: To obtain SIN 32 0 (set the DEGjRAD switch to DEG) Do these steps display will be II NxZ.
G. TOUGh d. Touch D SIN Ii \ B. Cosine 32. Example ;17: To obtain COS 32° (set the o'EG/RAD switch to DEG) Do these steps display will be 0.529919 Answer Example #15: a. Touch To obtain SIN 4.4157 radians (set the DEG/RAD switch to RAD) display will be Do these steps a. Touch ~ c. Touch d, Touch . 4.4157 \ 4.4157 Answer - 0.95631 a. Touch (set the DEG/RAD switch to DEG) display will be Do these steps c. Touch Answer ~ display will be twice Ii TAN d.
c. Touch iii \ a 1 0.529919 SIN-l d. Touch C. Arctangent Example #22: To obtain TAN-) 0.624869 (set the DEG/RAD switch to DEG) Do these steps display will be . 31.99998 Degrees Example ;20: To obtain SiN-I (- 0.529919) Iset the DEG/RAD switch to DEG) 'b Do these steps display will e a. Touch ~ a· Touch ~ twice b. Enter .624869 '. 0.529919 b. Enter .529919 D SIN-l ",. 0.529919 e. Touch a d. -; 31.99998 B. Arcosine Do these steps ~ display will be twice b. Enter 2.32 twice 2.
IV Natural Logarithm Example i24: To obtain In 5·623 . 00 these steps display will be a. Touch ~ twice 5.623 LNX c. Touch 1.726866 Answer , display will be Do these steps tWice 4.83 b. Enter 4.83 c. Touch D \ 4.83 lOGX d. Touch EJ 0.683947 Answer VI Square Root Example ::26: To obtain "\/341.57 Do these steps display will be a, Touch ~ twice d. Touch 341.57 11 \. x II Q \ D Answer 638.72 0.0015656 VIII Pi (ee) Example :::28: To obtain a numerical readout for the constant 7..
MEMORY OPERATIONS The following exercise is aimed at fami!arizing you with memory operations and capability. memory will contain display will be Do these steps a. Touch m b. Touch em twice , 250. O. 250. 250. e. Enter 300 300. 250. 2 300. 550. EI 300. 550. 120. 550. 120. 670. 36000. 670. d. Touch louch t g. Touch ~ j Touch £ II 670. I. Touch 670. a 1m 670. 670. n. Touch 670. o. II Touch E3 720. 670. 720. p. Touch 1;1 q. Touch 1m l. -" .. ;.
MIXED PROBLEMS Example ':31: do 36 + .- 9_.8 +~_ = 46 Do these steps a. Touch Example i32: find the antilog of .30103 (base 10) A, One way is to raise 10 to the power of the logarithm as follows: Do these steps display will be twice b. Enter 10 ril c. TouCh b. Ellter 3 c. Touch ~ a. Touch display will be !iI (gives natural log of 10.) II 2.302585 0.30103 d. Enter .30103 d. Enter 46 e. Touch f. n II h. Touch 1.999999 36 8.0652173 memory I] Do these steps II' a. Touch b.
h. Enter 36 i. Touch J. Enter 15 k. Touch II . . - m. 13 Touch t!iliI Touch iii n. Toucht!3 - o. ~ I. Touch -58. aa. Enter 36 36. -58. bb. Touchlil Answer 15. -58. Example #34: do /1 - O.684SIW 56 0 = -58. - -58. 1218. -58. r. Enter 43 -1218. EJ - t!iliI Touch 13 and im Touch Enter 36 w. Touch . 1218. -1218. - 306936. o. o. o. 306936. o. 554.01805 o. o. 8526. . II Touch III .... Touch z. Touch b .; . .1 ,j, 36. a II Iti ~ Touch ; dO 'JJi, 1.
p. Touch iii \ 0.5298848 o. Touch 0.7279318 p. Touch Vi q. Touch IJAnswer Ii 0.0144792 cos a 0.992546 0.0144792 b. Touch ~ twice o. c. Touch m O. EI r. Touch II s. Touch II t. Touch 13 u. Touch liiJ O. v. Touch IIAnswer q. Touch display will be Do these steps memory will hold a. Set DEGjRAD switch to DEGREES d. Enter 7 iii e. Touch O. SIN f. Touch g. Touch h. Touch i. Touch J• Touch D EI I!I II 0.121869 O. 0.121869 O. 0.014852 o. o. o. ~ EI o. k. Enter B I.
SPECIFICATIONS Capabilities: Algebraic Functions _. addition, subtraction, multiplication, division, reciprocals, square roots, sign change and 'C, (31415926) Scientific Functions - exponential functions (c'L natural and common 10Qarithms, arcsine, arcosine, arctangent, exponential powers (y'), sine. cosine, tangent. Memory Functions - memory storage, memory recall, memory clear, exchange of memory content and display.
WARRANTY BATTERY NOTES Bowmar/ALl, Inc. WBrrallls to the purchaser of this neW Bowmar Calculator thai if the machine or any part thereof in the judgment of 80wmar is proven to be defective in material at workmanshJp wilhJn one year from date of original purchase, such defects will be repaired or replaced (at the Company's option) free of charge for parts and labor. 1. With normal use at room temperature, a full battery charge can be expected to supply about 4 hours of accumulated working time.