examples show what happens when we request both a conversion and the optional places: ``` STR$(201.5, 16) ``` which gives us **C9** (which equals **201**, the integer part of **201.5** ) and ``` STR$(3.5, 2, 4) ``` which converts **3.5** into a binary number with 4 fractional places for **.5** and returns **11.1000**. #### IN **IN (**_source$, match$ [, startpos[, wild$]]_) returns the leftmost character position number where *match$* was found in *source$*. Optional parameter *startpos* determines the position within *source$* to begin the search (default=**1**). If *startpos* is negative, the search starts from position **ABS**(*startpos*) and proceeds backwards (More about **ABS** further below). The value returned will be between **1** and **LEN** *source$* if a match was found or **0** if a match is not found, *startpos* is **0**, *match$* or *source$* are the empty string (""). If you're not entirely sure of the spelling of the word you're looking for within the original string you have the option to use a *wildcard*[^p54-1] character which itself is user-definab*le. Any character you enter in wild$* or the copyright symbol © (**ASCII 127**), will become the wildcard character which you can then substitute in *match$* for any character you're unsure about. Any characters in *match$* which are the wildcard character will match any character in *source*$. If *wild$* is the empty string (""), the wildcard character is **ASCII 0**. Here are some examples to better illustrate: ``` PRINT IN("Harry is awesome"," ") ``` Prints **6** on the screen as a space is a valid character while ``` PRINT IN("Harry is awesome"," ",7) ``` Prints **9** as we told **IN** to start looking from position **7** onwards. ``` PRINT IN("Harry is awesome"," ",-16) ``` will also return **9** as it's looking backwards and finally ``` PRINT IN("Here's Garry!","a%%y",1,"%") ``` prints **9** as we substituted any letter for the symbol **%** and the first string is located there. If however we modified the above slightly and made it: ``` PRINT IN("Here's Garry!","%r",1,"%") ``` we'd get **2** as the first match **er** for the **%r** is located there. If we then modified it a little further to: ``` PRINT IN("Here's Garry!","%r",5,"%") ``` it would have returned **10** as starting from position **5** the first match is the **rr** in Ga**rr**y. [^p54-1]: *A wildcard character is a character placeholder for any possible character*