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Online quadratic equation calculator instance

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Author: User
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Online quadratic equation calculator instance

Share the online mona1 quadratic equation calculator instance. For more information, see.

The Code is as follows:

<Html>

<Head>

<Meta http-equiv = "Content-Type" content = "text/html" charset = "UTF-8">

<Title> online mona1 quadratic equation calculator </title>

</Head>

<Body>

<Form name = "fquad">

<P align = "center"> solving quadratic equation calculation <br>

</P>

<Table align = "center">

<Tbody>

<Tr>

<Td bgcolor = "#990000">

<H2> <font color = "# ffffff"> <input size = "4" name = "fa" type = "text"> x <sup> 2 </sup> + <input size = "4" name = "fb" type = "text"> x + <input size = "4" name = "fc" type = "text"> = 0 <input onclick = "checkQuad () "type =" button "value =" problem solving "> <input type =" reset "value =" reset "> </font>

<P align = "center"> <font color = "# ffffff" face = "Arial"> <B> solution to a quadratic equation </B> </font> </ p>

</Td>

</Tr>

<Tr>

<Td bgcolor = "#990000">

<H2> <font color = "# ffffff"> x <sub> <a style = "text-decoration: none "> <font color =" # ffffff "> 1 </font> </a> </sub> = <input size =" 45 "name =" x1 "type = "text"> <br>

X <sub> 2 </sub> = <input size = "45" name = "x2" type = "text"> </font>

</Td>

</Tr>

<Tr>

 

</Tr>

</Tbody>

</Table>

</Form>

<P align = "center"> Made by CRoot </p>

<Script language = "JavaScript">

<! --

Var rootparti;

Var rootpart;

Var det;

Var rootparti1;

Var rootparti2;

Var;

Var B;

Var c;

Var x1;

Var x2;

Var I = "I ";

Function checkQuad (){

Var a = document. fquad. fa. value;

Var B = document. fquad. fb. value;

Var c = document. fquad. fc. value;

If (a = 0 & c! = 0 ){

X1 =-c/B;

X2 = "Not a quadratic equation, but here is your answer for x ";

Document. fquad. x1.value = x1;

Document. fquad. x2.value = x2;

}

Else if (a = "" & c! = 0 ){

X1 =-c/B;

X2 = "Not a quadratic equation ";

Document. fquad. x1.value = x1;

Document. fquad. x2.value = x2;

}

Else {

Quad ();

}

}

Function quad (){

Var a = document. fquad. fa. value;

Var B = document. fquad. fb. value;

Var c = document. fquad. fc. value;

Det = Math. pow (B, 2)-4 * a * c;

Rootpart = Math. sqrt (det)/(2 * );

Rootparti = (Math. sqrt (-det)/(2 * a) + I;

If (parseFloat (rootparti) <0 ){

Rootparti1 = rootparti;

Rootparti2 = (-1 * parseFloat (rootparti) + I;

}

Else {

Rootparti1 = (-1 * parseFloat (rootparti) + I;

Rootparti2 = rootparti;

}

If (rootparti1 = "1i "){

Rootparti1 = I;

Rootparti2 = "-I ";

}

Else if (rootparti1 = "-1i "){

Rootparti1 = "-I ";

Rootparti2 = I;

}

If (det = 0 ){

X1 = x2 =-B/(2 * );

}

Else if (det> 0 ){

X1 = (-B + Math. sqrt (det)/(2 * );

X2 = (-B-Math. sqrt (det)/(2 * );

}

Else if (-B/(2 * a) = 0 ){

X1 = rootparti1;

X2 = rootparti2;

}

Else {

X1 = (-B/(2 * a) + "+" + rootparti1 );

X2 = (-B/(2 * a) + "+" + rootparti2 );

}

Document. fquad. x1.value = x1;

Document. fquad. x2.value = x2;

}

// Will solve for complex numbers

 

// -->

</Script>

</Body>

</Html>

 

 

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