Calculos: Mathematics Calculation Game (Kickstarter)

Calculos:  Mathematics Calculation Game  (Kickstarter)

The Card Game

Xavier Wilain created the card game Calculos, which is based on quick, mental mathematics dealing with the four arithmetic operations:  addition, subtraction, multiplication, and division.  There is a mixed version that has all four arithmetic operations.  

Players start with a card and try to find a calculation that matches any of the calculations on the center card.  

For example, if the center card has:

2 × 5

3 × 6

5 × 5

4 × 4

If you have any of the calculations on your card, say 4 × 4, you shout "4 times 4 equals 16" and claim the card.  The object is for find a calculation faster than their opponents.   

Here is a video of the card game and how to play it:

https://www.youtube.com/watch?v=-PEfEVTV4wI

The card game comes in four levels: each level has a different set of calculations on the card, from four to eight.   On the XW_SeriousGames website, each level can be purchased separately or altogether for each operation.

Link:  https://www.xwseriousgames.com/

The Mobile App (Kickstarter)

Wilain is running a Kickstarter campaign to adapt the card game into a mobile app that contains all 20 levels (4 four levels for each arithmetic operation plus one for mixed) with plans to add levels in the future.  Wilain has goal to raise 33'000 CHF (Swiss Francs, which is $35,897.63 in US Dollars on 6/28/2021 - conversion provided by Morningstar).  If successful, the mobile app is set to begin development in October 2021.  The target fund date is July 27, 2021.  

Kickstarter page:

https://www.kickstarter.com/projects/xw-serious-games/calculos/description

Please check this game out, it promises to be a great way to strength our mental calculation skills.  

Eddie

All original content copyright, © 2011-2021.  Edward Shore.   Unauthorized use and/or unauthorized distribution for commercial purposes without express and written permission from the author is strictly prohibited.  This blog entry may be distributed for noncommercial purposes, provided that full credit is given to the author. 

HP 12C: Complex Arithmetic (Addition, Multiplication, and Division)

HP 12C:   Complex Arithmetic (Addition, Multiplication, and Division)

Let A and B represent the two complex numbers

A = R1 + R4*i

B = R2 + R5*i

Where i = √-1

Store real components in R1 and R2, and imaginary parts R4 and R5.  Choose the arithmetic calculations:

Enter 0 for addition:  A + B

Enter 1 for multiplication:  A * B

Enter 2 or otherwise for division:  A ÷ B

Result:  C = R3 + R6*i

Program:

STEP	CODE	KEY
01	44, 0	STO 0
02	43, 35	X=0
03	43, 33, 09	GTO 09
04	1	1
05	30	-
06	43, 35	X=0
07	43, 33, 18	GTO 18
08	43, 33, 35	GTO 35
09	45, 1	RCL 1
10	45, 2	RCL 2
11	40	+
12	44, 3	STO 3
13	45, 4	RCL 4
14	45, 5	RCL 5
15	40	+
16	44, 6	RCL 6
17	43, 33, 63	GTO 63
18	45, 1	RCL 1
19	45, 2	RCL 2
20	20	*
21	45, 4	RCL 4
22	45, 5	RCL 5
23	20	*
24	30	-
25	44, 3	STO 3
26	45, 1	RCL 1
27	45, 5	RCL 5
28	20	*
29	45, 2	RCL 2
30	45, 4	RCL 4
31	20	*
32	40	+
33	44, 6	STO 6
34	43, 33, 63	GTO 63
35	45, 2	RCL 2
36	36	ENTER
37	20	*
38	45, 5	RCL 5
39	36	ENTER
40	20	*
41	40	+
42	44, 0	STO 0
43	45, 1	RCL 1
44	45, 2	RCL 2
45	20	*
46	45, 4	RCL 4
47	45, 5	RCL 5
48	20	*
49	40	+
50	45, 0	RCL 0
51	10	÷
52	44, 3	STO 3
53	45, 4	RCL 4
54	45, 2	RCL 2
55	20	*
56	45, 1	RCL 1
57	45, 5	RCL 5
58	20	*
59	30	-
60	45, 0	RCL 0
61	10	÷
62	44, 6	STO 6
63	45, 3	RCL 3
64	31	R/S
65	45, 6	RCL 6
66	43, 33, 00	GTO 00

Example:

A = 4.25 + 3.16*i, B = -2.27 + 1.04*i

Option 0 (+):  1.98 + 4.20*i

Option 1 (*):  -12.93 – 2.75*i

Option 2 (÷): -1.02 – 1.86*i

Eddie

This blog is property of Edward Shore, 2017