Mathcad – what is it
1 / 12

- PowerPoint PPT Presentation

  • Uploaded on

Mathcad – what is it. A fancy calculator. A problem solving tool. A unit converter. An equation writer. We will explore pieces of all of these. Mathcad is a Windows type program. Menu bar across the top. Toolbars & buttons in other rows. Many of the tool palettes “float”.

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
Download Presentation

PowerPoint Slideshow about '' - earl

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Mathcad what is it

Mathcad – what is it

A fancy calculator

A problem solving tool

A unit converter

An equation writer

We will explore pieces of all of these

Mathcad what is it

Mathcad is a Windows type program

Menu bar across the top

Toolbars & buttons in other rows

Many of the tool palettes “float”

Mathcad what is it

Main use of Mathcad is for mathematical calculations(duh!)

Write formulae using variables & numbers & math symbols

Mathcad what is it

Mathcad has a lot of pre-defined names that are very useful:

c The speed of light

g Acceleration due to gravity

And a host of units, so many unit conversions are done automagically:

m meter

ft ft

kg kilogram

lb pound

Mathcad what is it

Mathcad Variable Names

A string of characters (including numbers and some

“special” characters (e.g. #, %, _, and a few more)

Cannot start with a number

Capitalization & spelling count!!!

A1 is different from a1

Be careful not to conflict with predefined name

(e.g. g = acceleration due to gravity, m = meter,

etc. -- which we will discuss later)

Be careful that variables and functions have different names

Mathcad what is it


The “.” (period) starts a text subscript, which really is

part of the variable name

A1 is different from A1

The “[“ indicates an array subscript. Thus

A1 indicates an element in the array A

(it is the second element, as array

subscripts start with 0 by default

in Mathcad)

And, unfortunately, the two are very difficult to tell apart when you just look at them. Avoid the superscript tool on the tool bar!

Mathcad what is it

To build equations, Mathcad has three or four types of equal signs

Need to keep them straight and know when to use each!!!!

Mathcad what is it

Assignment: equal signs

Type a “:” and see “:=“

Assigns value on right side to variable on left


Type a “=“ and see a “=“

Evaluates expression on left and displays on right

Mathcad what is it

Type a “ equal signsctrl = “ and see a bold = sign

Boolean Equal:

Indicates a logical equivalence between the left and right sides (Don’t worry about the details of this, but watch for its use.)

This is tough to see, but in Mcad the = sign is bold.

Main use is in solving equations.

Mathcad what is it

Equivalence equal signs

or replacement:

Type a “~” and see three horizontal lines

Causes expression on left to be replaced by expression on right everywhere in the worksheet

Would cause all occurrences of “A” to be replaced by

y2 + 3

We won’t use this one, but here for completeness

Mathcad what is it

And something to remember: equal signs

Mathcad evaluates the worksheet from left to right and top to bottom every time the worksheet is evaluated.

(unless you set the option to manual recalculation)

Mathcad what is it

Do some of the tutorials equal signs




Getting Started Primers


Entering Math Expressions


Calculating with Variables.