PRESENTATION NOTES blah

SPREADSHEET

spreadsheet softwares allow user control numbers. it can make short work that involves calculations. Malleable matrix is a spread sheet doc which is called a worksheet n appears

values: raw material that spresheet calculates like numbers

labels: helps ppl undersand.

replication: basic copy and paste functions

automatic recalculations: changes all data related to the change.

functions: set calculations like square-root button

Macros: custom-designed procedure programs that automats tasks in apps.

templates: ready2use wroksheets

automatic links: when something changes, all linked wrkshts update auto.

line charts: show trends over time

bar charts: similar to line graph but are more opportune when data falls into more categories.

scatter charts: used to discover the relationship btwn two variables.

-->spreadsheet errors are easy to make and over look.

floow basic guidelines to not go into error.

1. plan wrksht b4 entering values, etc.

2. make assumptions as accurate as possible

3. double check every formula

4. make formula readable

money manages:

-sprdshts are seldom used in accounting

-Accounting is complex with rules formulas laws and traditions.

auto mathematics:

mathematic processors include interactive wizard mode , a program langyage tools for creating interactive stuff.

statistics and data analysis:

data is referred to as data. Statistics are very important and diff branch to math.

-its not an absolute answer

we have to test strength of data

scientific visualization:

ises shapes location in space color brightness, and motion to help read for ex: weather.

calculated risks: computer modeling and simulation:

-comps r used to visualize scientific data thats been collected

-comp model=abstraction--a set of concepts and ideals

comp simulation is used for physical, biological and in engineering.

there are many reasons to use comp sim:

1. safety.

2. economy

3. projection

4. visualization

5. replication.

RISKS:

comp sim--

1.gego revisited Ex: weather forecast. atmosphere very complex so sometimes its wrong.

2. making reality fit in the machine--these are very complex so most likey have difficulties

3. illusion of infallibility: they can be very risky