Membuat Aplikasi Tampilan Kalkulator pada website

oke , semua nya di sini saya akan memberikan sedikit ilmu tentang contoh script yang di gunakan pada pemrograman html:

copy dan paste kan pda dreamwear : sintax di bawah ini:


<FORM NAME="sci-calc">
<TABLE CELLSPACING="0" CELLPADDING="1">
<TR>
<TD COLSPAN="5" ALIGN="center"><INPUT NAME="display" VALUE="0" SIZE="28" MAXLENGTH="25"></TD>
</TR>
<TR>
 <TD ALIGN="center" height="36">
<INPUT TYPE="button" VALUE=" exp " ONCLICK="if (checkNum(this.form.display.value)) { exp(this.form) }"></TD>
 <TD ALIGN="center" height="36">
<INPUT TYPE="button" VALUE=" 7 " ONCLICK="addChar(this.form.display, '7')"></TD>
 <TD ALIGN="center" height="36">
<INPUT TYPE="button" VALUE=" 8 " ONCLICK="addChar(this.form.display, '8')"></TD>
 <TD ALIGN="center" height="36">
<INPUT TYPE="button" VALUE=" 9 " ONCLICK="addChar(this.form.display, '9')"></TD>
 <TD ALIGN="center" height="36">
<INPUT TYPE="button" VALUE=" / " ONCLICK="addChar(this.form.display, '/')"></TD>
</TR>
<TR>
<TD ALIGN="center"><INPUT TYPE="button" VALUE=" ln " ONCLICK="if (checkNum(this.form.display.value)) { ln(this.form) }"></TD>
<TD ALIGN="center"><INPUT TYPE="button" VALUE=" 4 " ONCLICK="addChar(this.form.display, '4')"></TD>
<TD ALIGN="center"><INPUT TYPE="button" VALUE=" 5 " ONCLICK="addChar(this.form.display, '5')"></TD>
<TD ALIGN="center"><INPUT TYPE="button" VALUE=" 6 " ONCLICK="addChar(this.form.display, '6')"></TD>
<TD ALIGN="center"><INPUT TYPE="button" VALUE=" * " ONCLICK="addChar(this.form.display, '*')"></TD>
</TR>
<TR>
<TD ALIGN="center"><INPUT TYPE="button" VALUE=" sqrt " ONCLICK="if (checkNum(this.form.display.value)) { sqrt(this.form) }"></TD>
<TD ALIGN="center"><INPUT TYPE="button" VALUE=" 1 " ONCLICK="addChar(this.form.display, '1')"></TD>
<TD ALIGN="center"><INPUT TYPE="button" VALUE=" 2 " ONCLICK="addChar(this.form.display, '2')"></TD>
<TD ALIGN="center"><INPUT TYPE="button" VALUE=" 3 " ONCLICK="addChar(this.form.display, '3')"></TD>
<TD ALIGN="center"><INPUT TYPE="button" VALUE=" - " ONCLICK="addChar(this.form.display, '-')"></TD>
</TR>
<TR>
<TD ALIGN="center"><INPUT TYPE="button" VALUE=" sq " ONCLICK="if (checkNum(this.form.display.value)) { square(this.form) }"></TD>
<TD ALIGN="center"><INPUT TYPE="button" VALUE=" 0 " ONCLICK="addChar(this.form.display, '0')"></TD>
<TD ALIGN="center"><INPUT TYPE="button" VALUE=" . " ONCLICK="addChar(this.form.display, '.')"></TD>
<TD ALIGN="center"><INPUT TYPE="button" VALUE=" +/- " ONCLICK="changeSign(this.form.display)"></TD>
<TD ALIGN="center"><INPUT TYPE="button" VALUE=" + " ONCLICK="addChar(this.form.display, '+')"></TD>
</TR>
<TR>
<TD ALIGN="center"><INPUT TYPE="button" VALUE=" ( " ONCLICK="addChar(this.form.display, '(')"></TD>
<TD ALIGN="center"><INPUT TYPE="button" VALUE="cos" ONCLICK="if (checkNum(this.form.display.value)) { cos(this.form) }"></TD>
<TD ALIGN="center"><INPUT TYPE="button" VALUE=" sin" ONCLICK="if (checkNum(this.form.display.value)) { sin(this.form) }"></TD>
<TD ALIGN="center"><INPUT TYPE="button" VALUE=" tan" ONCLICK="if (checkNum(this.form.display.value)) { tan(this.form) }"></TD>
<TD ALIGN="center"><INPUT TYPE="button" VALUE=" ) " ONCLICK="addChar(this.form.display, ')')"></TD>
</TR>
<TR>
<TD ALIGN="center"><INPUT TYPE="button" VALUE="clear" ONCLICK="this.form.display.value = 0 "></TD>
<TD ALIGN="center" COLSPAN="3"><INPUT TYPE="button" VALUE="backspace" ONCLICK="deleteChar(this.form.display)"></TD>
<TD ALIGN="center"><INPUT TYPE="button" VALUE="enter" NAME="enter" ONCLICK="if (checkNum(this.form.display.value)) { compute(this.form) }"></TD>
</TR>
</TABLE>
</FORM>

contoh tampilan nya: