MyMC10.tripod.com

# Math Design

Radio Shack®
MICRO COLOR COMPUTER SOFTWARE
CAT. NO. 26-3362

TERMS AND CONDITIONS OF SALE AND LICENSE OF RADIO SHACK AND TANDY COMPUTER EQUIPMENT AND SOFTWARE PURCHASED FROM A RADIO SHACK COMPANY-OWNED COMPUTER CENTER, RETAIL STORE OR FROM A RADIO SHACK FRANCHISEE OR DEALER AT ITS AUTHORIZED LOCATION

### LIMITED WARRANTY

I. | CUSTOMER OBLIGATIONS
| A. | CUSTOMER assumes full responsibility that this computer hardware purchased (the "Equipment"), and any copies of software included with the Equipemnt or licensed separately (the "Software") meets the specifications, capacity, versatility, and other requirements of CUSTOMER.
| B. | CUSTOMER assumes full responsibility for the condition and effectiveness of the operating environment in which the Equipment and Software are to function, and for its installation.
II. | RADIO SHACK LIMITED WARRANTIES AND CONDITIONS OF SALE
| A. | For a period of ninety (90) calendar days from the date of the Radio Shack sales document received upon purchase of the Equipment, RADIO SHACK warrants to the original CUSTOMER that the Equipment and the medium upon which the Software is stored is free from manufacturing defects. This warranty is only applicable to purchases of Radio Shack and Tandy Equipment by the original customer from Radio Shack company-owned computer centers, retail stores and from Radio Shack franchisees and dealers at its authorized location. The warranty is void if the Equipment's case or cabinet has been opened, or if the Equipment or Software has been subjected to improper or abnormal use. If a manufacturing defect is discovered during the stated warranty period, the defective Equipment must be returned to a Radio Shack Computer Center, a Radio Shack retail store, participating Radio Shack franchisee or Radio Shack dealer for repair, along with a copy of the sales document or lease agreement. The original CUSTOMER's sole and exclusive remedy in the event of a defect is limited to the correction of the defect by repair, replacement, or refund of the purchase price, at RADIO SHACK'S election and sole expense. RADIO SHACK has no obligation to replace or repair expendable items.
| B. | RADIO SHACK makes no warranty as to the design, capability, capacity, or suitability for use of the Software, except as provided in this paragraph. Software is licensed on an "AS IS" basis, without warranty. The original CUSTOMER'S exclusive remedy, in the event of a Software manufacturing defect, is its repair or replacement within thirty (30) calendar days of the date of the Radio Shack sales document received upon license of the Software. The defective Software shall be returned to a Radio Shack Computer Center, a Radio Shack retail store, participating Radio Shack franchisee or Radio Shack dealer along with the sales document.
| C. | Except as provided herein no employee, agent, franchisee, dealer or other person is authorized to give any warranties of any nature on behalf of RADIO SHACK.
| D. | Except as provided herein, Radio Shack makes no express warranties, and any implied warranty of merchantibility or fitness for a particular purpose is limited in its duration to the duration of the written limited warranties set forth herein.
| E. | Some states do not allow limitations on how long an implied warranty lasts, so the above limitation(s) may not apply to CUSTOMER.
III. | LIMITATION OF LIABILITY
| A. | Except as provided herein, Radio Shack shall have no liability or responsibility to customer or any other person or entity with respect to any liability, loss or damage caused or alleged to be caused directly or indirectly by "Equipment" or "Software" sold, leased, licensed or furnished by Radio Shack, including, but not limited to, any interruption of service, loss of business or anticipatory profits or consequential damages resulting from use or operation of the "Equipment" or "Software". In no event shall Radio Shack be liable for loss of profits, or any indirect, special, or consequential damages arising out of any breach of this warranty or in any manner arising out of or connected with the sale, lease, license, use or anticipated use of the "Equipment" or "Software". Notwithstanding the above limitations and warranties, Radio Shack's liability hereunder for damages incurred by customer or others shall not exceed the amount paid by customer for the particular Equipment" or "Software" involved.
| B. | RADIO SHACK shall not be liable for damages caused by delay in delivering or furnishing Equipment or Software.
| C. | No action arising out of any claimed breach of this Warranty or transactions under this Warranty may be brought more than two (2) years after the cause of action has accrued or more than four (4) years after the date of the Radio Shack sales document for the Equipment or Software, whichever first occurs.
| D. | Some states do not allow the limitation or exclusion of incidental or consequential damages, so the above limitation(s) or exclusion(s) may not apply to CUSTOMER.
IV. | RADIO SHACK SOFTWARE LICENSE
| RADIO SHACK grants to CUSTOMER a non-exclusive, paid-up license to use the RADIO SHACK Software on one computer, subject to the following provisions:
| A. | Except as otherwise provided in this Software License, applicable copyright laws shall apply to the software.
| B. | Title to the medium on which the Software is recorded (cassette and or diskette) or stored (ROM) is transferred to CUSTOMER, but not title to the Software.
| C. | CUSTOMER may use Software on one host computer and access that Software through one or more terminals if the Software permits this function.
| D. | CUSTOMER shall not use, make, manufacture, or reproduce copies of Software except for use on one computer and as is specifically provided in this Software License. Customer is expressly prohibited from disassembling the Software.
| E. | CUSTOMER is permitted to make additional copies of the Software only for backup or archival purposes or if additional copies are required in the operation of one computer with the Software, but only to the extent the Software allows a backup copy to be made. However, for TRSDOS Software, CUSTOMER is permitted to make a limited number of additional copies for CUSTOMER'S own use.
| F. | CUSTOMER may resell or distribute unmodified copies of the Software provided CUSTOMER has purchased one copy of the Software for each one sold or distributed. The provisions of this Software License shall also be applicable to third parties receiving copies of the Software from CUSTOMER.
| G. | All copyright notices shall be retained on all copies of the Software.
V. | APPLICABILITY OF WARRANTY
| A. | The terms and conditions of this Warranty are applicable as between RADIO SHACK and CUSTOMER to either a sale of the Equipment and or Software License to CUSTOMER or to a transaction whereby RADIO SHACK sells or conveys such Equipment to a third party for lease to CUSTOMER.
| B. | The limitations of liability and Warranty provisions herein shall inure to the benefit of RADIO SHACK, the author, owner and or licensor of the Software and any manufacturer of the Equipment sold by RADIO SHACK.
VI. | STATE LAW RIGHTS
| The warranties granted herein give the original CUSTOMER specific legal rights, and the original CUSTOMER may have other rights which vary from state to state.

## Math/Design

### Radio Shack ®

#### A DIVISION OF TANDY CORPORATION

#### FORT WORTH, TEXAS 76102

Math/Design Program:
© 1983 Tandy Corporation
All Rights Reserved.
Math/Design Program Manual:
© 1983 Tandy Corporation
All Rights Reserved.
Reproduction or use, without express written permission from Tandy Corporation, of any portion of this manual is prohibited. While reasonable efforts have been taken in the preparation of this manual to assure its accuracy, Tandy Corporation assumes no liability resulting from any errors or omissions in this manual, or from the use of the information contained herein.
10 9 8 7 6 5 4 3 2 1

## Loading MiniCalc / Spirals

Set up and connect the Micro Color Computer (MC-10), color video or television, CGP-115 Color Graphic Printer (for use with Spirals), and Cassette Recorder following the instructions in the TRS-80® Micro Color Computer Operation Manual. Then follow the instructions below:

1. Turn on the television, and set the volume at a normal listening level. Select channel 3 or 4 (whichever is weaker or not used in your area).

2. On the MC-10, select the same channel by positioning the CHANNEL SELECT switch (on the bottom of the computer) to the appropriate setting.

3. Set the antenna switchbox to the COMPUTER position.

4. Turn on the computer. The POWER ON/OFF switch is on the right side of the computer.

Your television screen should then turn green and display the following message:

          MICROCOLOR BASIC v.r.
          COPYRIGHT 1982 MICROSOFT
          OK

v.r is a pair of numbers specifying the program's version and release number.

5. Place the program tape into the cassette recorder. Set the volume of the recorder between 5 and 7.

6. Rewind the tape completely.

7. Type CLOAD "PROGRAM NAME" [ENTER].

"PROGRAM NAME" is the name of the program you wish to run.

8. Press the PLAY button on the recorder until it locks.

The letter S appears in the upper left corner of the television screen while the computer searches for and loads the program.

When the computer finds the program, the letter F and the filename appear at the top of the screen.

9. When the program is loaded, OK appears on the screen. Type RUN [ENTER]. The program now appears on the screen.

## MiniCalc / CLOAD "MINICAL"

Minicalc functions like a hand-held calculator. You can perform a wide range of mathematical functions with this versatile program. These include:

addition | [+]
subtraction | [-]
division | [/]
multiplication | [*]
find sine | [CONTROL][N]
find cosine | [CONTROL][M]
find tangent | [CONTROL][,]
find log | [CONTROL][.]
find square root | [CONTROL][/]
find nth power | [CONTROL][W]
find integer | [CONTROL][C]
find absolute value | [CONTROL][B]

### Correcting Mistakes

If you type an incorrect number, but have not entered it, press [CONTROL][A] once to clear the entry. Then enter the correct number.

If you have entered an incorrect number, type 0 [ENTER] once or twice until the ACCUMULATOR shows 0 as the answer. Begin your calculation again.

If you have pressed an incorrect mathematical function key ([+], [-], [/], [*]) press the correct function key once or twice until the screen displays it, and continue your calculation.

### Examples of Mathematical Operations

Try a simple calculation:

2 + 2

Type 2 [ENTER] [+] 2 [ENTER]. The answer, 4, appears in the ACCUMULATOR.

Try one more simple calculation:

12.3 ÷ 4.5

Type 12.3 [ENTER] [/] 4.5 [ENTER] The answer, 2.73333334, appears in the ACCUMULATOR.

Next try a mixed calculation:

12.3 x 4.5 ÷ 3

Type 12.3 [ENTER] [*] 4.5 [ENTER] [/] 3 [ENTER] The answer, 18.45, appears in the ACCUMULATOR.

The above examples should give you a feel for the program. Below are additional examples for each type of function, including a sample calculation, the entry sequence, and the answer.

### Four Fundamental Calculations:

1 | 112 + 312 | 112 [ENTER][+] 312 [ENTER] = 424
2 | 213 - 567 | 213 [ENTER] [-] 567 [ENTER] = -354
3 | 5.12 x 43.6 | 5.12 [ENTER] [*] 43.6 [ENTER] = 223.232
4 | 50 ÷ 5.12 | 50 [ENTER] [/] 5.12 [ENTER] = 9.765625

Note:

For the following three trigonometric functions you must convert degrees into radians in order to make calculations. One radian = 180/pi = 57.29577951 degrees; one degree = .0174532925 radians.

Sine:

A tennis ball strikes the ground while traveling at 54 feet per second at an angle of thirty degrees from the horizontal. What is the ball's rate of descent at the moment of impact?

Answer 30 degrees = .523598775 radians

Rate = 54 ft / sec x SIN(.523598775)
= 27 ft / sec

Sequence

30[ENTER][*] .0174532925 [ENTER] [CONTROL] [N] [*] 54
[ENTER] = 27 ft / sec

Cosine: A prototype automobile is to be crash tested for federal safety certification. The federal test specifications require that the vehicle under test should strike a solid barrier at a speed of not less than 35 mph. The manufacturer will actually launch the vehicle towards the barrier at 37 mph, and its angle may be off by up to five degrees. Assuming the worst degree of error (five degrees), will the specifications for impact be met?

Answer

5 degrees = .0872664626 radians
Impact speed = 37 mph x COS (.0872664626)
= 36.85920383 mph (over 35 mph)

Sequence

5 [ENTER][*] .0174532925 [ENTER][CONTROL][M][*]37
[ENTER] = 36.8592039

Tangent: A railroad bed being built must not have a grade larger than 1.5 degrees. What is the equivalent rise per thousand feet?

Answer:

1.5 degrees = .0216799387 radians

Rise = 1000 x TAN (.0261799387)

= 26.1859215 feet per thousand

Sequence 1.5 [ENTER] [*] .0174532925 [ENTER] [CONTROL] [,] [*] 1000
[ENTER] =26.1859215

Log: What power of three is ten?

Answer Exponent = log(10) - log(3)

= 2.30258509 - 1.09861229

= 2.09590327

Sequence

10 [ENTER] [CONTROL] [.] = 2.30258509

(Record this answer on a worksheet.)

3 [ENTER] [CONTROL] [.] = 1.09881229

(Record this answer on a worksheet.

2.30258509[ENTER][/]

1.09861229 [ENTER] = 2.09590327

Square Root: What is the square root of 35?

Answer √35 = 5.91607979

Sequence

35[ENTER][CONTROL][/] = 5.91607979

Nth Power:

What is 9 to the 7th power?

Answer

97 = 4782969.02

Sequence 9 [ENTER] [CONTROL][W]
7 [ENTER] = 4782969.02

Integer

: In arithmetic an integer is any of the whole numbers, positive or negative. Find Integer function identities the correct integer of the number shown in the ACCUMULATOR, rounding that number down to the nearest whole number. If the ACCUMULATOR shows 2.19567 and you press [CONTROL][C], the ACCUMULATOR will show the corresponding integer, 2. If the original number in the ACCUMULATOR is - 2.19567, it is rounded down to its integer, -3.

Absolute Value:

The absolute value of a number is that number without positive or negative value. If the ACCUMULATOR shows -15.46 and you press [CONTROL][B], the ACCUMULATOR will show the absolute value, 15.46.

## Spirals / CLOAD "SPIRALS"

Spirals is a fun geometric exercise. It lets you design and plot a large variety of polygonal spirals in four colors. Use your imagination to plot intriguing shapes and designs.

To begin, load "SPIRALS" and then turn on your CGP-115 Color Graphic Printer. Type RUN and press [ENTER] to get the first prompt.

NUMBER OF POINTS :? Enter the number of points for the polygon you want to plot. A triangle has three points, a square has four points. There is no limit to the number of points you may choose, but 100 or more points produce a circle.

POINTS PER MOVE :? Enter the number of points to plot per move. Usually this number is one. If you enter five as the number of points to plot, and one as the points per move, the result is a pentagon. If you choose two points per move, the result is a five pointed star. Experiment with this to produce the results you desire. Some combinations don't work well together; a four pointed polygon with two points per move produces a straight line.

INITIAL ROTATION :? Enter the angle of the first polygon plotted. If you choose 0 degrees rotation, the polygon is centered on the printout.

CONSECUTIVE ROTATION :? Enter the degree of rotation of each subsequent polygon plotted. It you enter 10 as the degree of rotation, each subsequent polygon turns by 10 degrees.

SIZE RATIO :? Enter the size of each subsequent polygon. II you choose .90 as the size ratio, each subsequent polygon is 10% smaller than the preceding one. You may choose a size ratio of between .05 and 1.

INITIAL COLOR :? Enter the color code you prefer as the initial color of the polygon.

0 | black
1 | blue
2 | green
3 | red

COLOR INCREMENT :? Enter the increment of change between the initial color and the color of subsequent polygons of the spiral. If you choose an initial color of black and a color increment of .25, the first four polygons are black, the next four blue, the next four green.

After you have answered these prompts, the spiral design begins plotting. When you wish to stop a plot, hold down the space bar until the prompt ANOTHER PLOT appears. Answer [Y] to begin again; answer [N] to exit the program.

Note: To run the program again, turn the plotter off - then on again to reset it.

### Plot a Spiral

Here is a sample spiral and the responses that are necessary to recreate it:

    NUMBER OF POINTS = 5

    POINTS PER MOVE = 2

    INITIAL ROTATION = 0

    CONSECUTIVE ROTATION = 10

    SIZE RATIO = .90

    INITIAL COLOR = 3

    COLOR INCREMENT = .25

RADIO SHACK, A DIVISION OF TANDY CORPORATION
U.S.A.: FORT WORTH, TEXAS 76102
CANADA:: BARRIE, ONTARIO L4M 4W5

TANDY CORPORATION

Australia | Belgium | U.K.
91 Kurrajong Road | Parc Industriel de Naninne | Bilston Road Wednesbury
Mount Druitt, N.S.W. 2770 | 5140 Naninne | West Midlands WS10 7JN

10/83-SP | Printed in U.S.A.