TextCalc (c) 1990 John A. Samuels p 1 of 8 Hi! TextCalc will allow you to load in any text file and do arithmetic calculations on any of the numbers in that text file. You're reading an ordinary text file right now. Just follow the directions... With the LEFT mouse button, click on this number: 123 The number '123' should've shown up in two places - the string gadget titled "Left Button" and the string gadget titled "L Click Sum". Now, with the LEFT mouse button, click on this number: 456 The number '456' should be in the "Left Button" string gadget and the number '579' should be in the "L Click Sum" string gadget. That's because '579' is what you get by adding '123' and '456'. To continue, click on the right arrow at the bottom of the screen... p 2 of 8 Ok, that's how you get to the next "page" of your document. Now click on this number with the LEFT mouse button: 789 Now '789' should be in the "Left Button" string gadget but the sum of 123 plus 456 plus 789 should be in the "L Click Sum" string gadget. Cool, huh? In other words, each time you click on a number with the Left Mouse Button it's added to the number that's in the "L Click Sum" string gadget. The new total is placed in the "L Click Sum" string gadget and the number you clicked on is placed in the "Left Button" string gadget. Wait! There's much more... Click on the right arrow when you're ready to learn more... Ok, now we'll do some more math... p 3 of 8 But first, let's clear all the previous stuff. Click on the "c" gadget that's to the right of the words "Left Button" under the "Left Button" string gadget. A '0' should show up in the gadget. Do the same thing for the "L Click Sum" gadget. Now, click on this number with the Left Button: 15 And click on this number with the RIGHT Button: 25 The number '15' should be in the "Left Button" string gadget and the number '25' should be in the "Right Button" string gadget. Click on the right arrow to get to the next screen... Ok, let's multiply our two numbers (15 and 25) together. p 4 of 8 Click on the gadget that has the "X" in it. Notice an "*" shows up above the four "operations" gadgets. That means that until YOU say otherwise, we'll be performing multiplication. Now click on the big "=" gadget. The answer, '375' appears in both the "Result" string gadget and the "Running Total" string gadget. You've multiplied '15' times '25'. Nice going! Now click on the following number with the RIGHT button: 40 It's in the "Right Button" window, right? Please click the right arrow to continue... p 5 of 8 Ok, now click on the "=" gadget. The number in the "Result" string gadget changes to 600 (15 * 40) and the number in the "Running Total" string gadget changes to 975 which is the sum of the two previous multiplications that you've done. Let's review... o To put a number in the "Left Button" gadget, click on it with the Left Mouse Button. To put a number in the "Right Button" gadget, click on it with the RIGHT Mouse Button. o To perform an operation on the Left and Right numbers, click on the sign you want to use (+,-,*,/) , then click the "=" gadget. Please continue to next screen by clicking the right arrow... p 6 of 8 o You don't need to choose a sign for each calculation. If you want to do, for instance, several multiplications, just click the multiplication gadget once. It stays on. And if you plan to use the same number for more than one calculation, there is no need to choose it (click on it) more than once. This makes calculations quick and easy. o Each time you click on a number with the Left Button, that number is added to the number that's in the "L Click Sum" gadget and the result is placed in the "L Click Sum" gadget. This makes it very quick to do addition. You know what to do to continue... p 7 of 8 o Each time you click on the "=" gadget, the result of the calculation is added to the number that's in the "Running Total" gadget and the new result is placed in the "Running Total" gadget. Now, it's significant that there are all these "string gadgets" down there towards the bottom of the screen. You can type any number you want into any one of them. That number then becomes "active" and can participate in any calculations. That means that a number that you need to use does not have to be in the document you've loaded into TextCalc. In fact, if you so desire, you can type your dog's name or your favorite Portuguese swear word into one of them. The contents of that string gadget will then be evaluated as zero ("0") as will any non-numeric entry. Please go to the next page... p 8 of 8 Lastly, TextCalc keeps a "log" of all of the activity it creates. This log is found in your RAM: directory. It's called "tc.log" and is an ASCII text file that can be read by any word processor or text editor. Of course, it can also be read by TextCalc so that you can perform calculations on your calculations. Got that? RAM:tc.log will be appended, not overwritten, each time you run TextCalc. Please read the text file in this archive called "read.me.later" for some important additional features and non-features. "read.me.later" is the complete documentation for TextCalc. Thanks for reading this. You won't regret it.