200011 计算基坑体积已知底面长宽和顶面长宽和高

<?php
header('Content-Type: text/html; charset=utf-8');
define ('ROOT', $_SERVER['DOCUMENT_ROOT']);
include ROOT.'/assets/php/head.php';

$tit= '计算基坑体积已知底面长宽和顶面长宽和高';
//底面长：36，宽16；顶面长：39，宽：23；高：4
$val='36 16 39 23 4';

//调用方法
mill($tit,$img,$val);

//mill 是磨粉机的方法
function mill($tit,$img,$val){
    //初始化
    include ROOT.'/assets/php/init.php';
    imgt($img,$tit);

    //设置默认值 
    bcscale (3);
    //$pi = round(pi(),2);
    
    //以空格分割成数值
    $vals = expl($val);
    $a1 = evev($vals[0]);
    $b1 = evev($vals[1]);
    $a2 = evev($vals[2]);
    $b2 = evev($vals[3]);
    $h = evev($vals[4]);

    //已知条件
    $know = array();
    array_push($know, $val);
    $v0 = eveq($vals[0]);
    array_push($know, "底面长：$v0{$unit['m']}");
    $v1 = eveq($vals[1]);
    array_push($know, "底面宽：$v1{$unit['m']}");
    $v2 = eveq($vals[2]);
    array_push($know, "顶面长：$v2{$unit['m']}");
    $v3 = eveq($vals[3]);
    array_push($know, "顶面宽：$v3{$unit['m']}");
    $v4 = eveq($vals[4]);
    array_push($know, "基坑高：$v4{$unit['m']}");

    //计算步骤
    $step = array();
    array_push($step, "底面的面积：S1");
    array_push($step, "{$math['eq']} $a1{$math['mul']}$b1");
    $S1 = bcmul($a1, $b1);
    array_push($step, "{$math['eq']} $S1{$unit['m2']}");

    array_push($step, "顶面的面积：S2");
    array_push($step, "{$math['eq']} $a2{$math['mul']}$b2");
    $S2 = bcmul($a2, $b2);
    array_push($step, "{$math['eq']} $S2{$unit['m2']}");

    array_push($step, "中部的面积：S0");
    array_push($step, "{$math['eq']} {$math['lsqb']}{$math['lpar']}$a1{$math['add']}$a2{$math['rpar']}{$math['div']}2{$math['rsqb']}{$math['mul']}{$math['lsqb']}{$math['lpar']}$b1{$math['add']}$b2{$math['rpar']}{$math['div']}2{$math['rsqb']}");
    $a1a1 = bcadd($a1, $a2);
    $b1b2 = bcadd($b1, $b2);
    array_push($step, "{$math['eq']} {$math['lpar']}$a1a1{$math['div']}2{$math['rpar']}{$math['mul']}{$math['lpar']}$b1b2{$math['div']}2{$math['rpar']}");
    $a1a12 = bcdiv($a1a1,2);
    $b1b22 = bcdiv($b1b2,2);
    array_push($step, "{$math['eq']} $a1a12{$math['mul']}$b1b22");
    $S0 = bcmul($a1a12, $b1b22);
    array_push($step, "{$math['eq']} $S0{$unit['m2']}");

    array_push($step, "天然状态下的体积：V1");
    array_push($step, "{$math['eq']} {$math['lpar']}$h{$math['div']}6{$math['rpar']}{$math['mul']}{$math['lpar']}$S1{$math['add']}4{$math['mul']}$S0{$math['add']}$S2{$math['rpar']}");
    $S04 = bcmul(4, $S0);
    array_push($step, "{$math['eq']} {$math['lpar']}$h{$math['div']}6{$math['rpar']}{$math['mul']}{$math['lpar']}$S1{$math['add']}$S04{$math['add']}$S2{$math['rpar']}");
    $h6 = $h/6;
    $S1S2S04 = bcadd($S1+$S2,$S04);
    array_push($step, "{$math['eq']} $h6{$math['mul']}$S1S2S04");
    $V1 = bcmul($h6,$S1S2S04);
    array_push($step, "{$math['eq']} $V1{$unit['m3']}");

    array_push($step, "松散状态下的体积：V2");
    $RS = 1.09;
    array_push($step, "土的可松性系数：设RS{$math['eq']}$RS");
    array_push($step, "{$math['eq']} $V1{$math['mul']}$RS");
    $V2 = bcmul($V1, $RS);
    array_push($step, "{$math['eq']} $V2{$unit['m3']}");

    //算出结果
    $ends = array();
    array_push($ends, "底面的面积：$S1{$unit['m2']}");
    array_push($ends, "顶面的面积：$S2{$unit['m2']}");
    array_push($ends, "中部的面积：$S0{$unit['m2']}");
    array_push($ends, "天然状态下的体积：$V1{$unit['m3']}");
    array_push($ends, "松散状态下的体积：$V2{$unit['m3']}");

    //公式表示
    $home = array();
    array_push($home, "底面的面积：S1{$math['eq']}a1{$math['mul']}b1");
    array_push($home, "顶面的面积：S2{$math['eq']}a2{$math['mul']}b2");
    array_push($home, "中部的面积：S0{$math['eq']}{$math['lsqb']}{$math['lpar']}a1{$math['add']}a2{$math['rpar']}{$math['div']}2{$math['rsqb']}{$math['mul']}{$math['lsqb']}{$math['lpar']}b1{$math['add']}b2{$math['rpar']}{$math['div']}2{$math['rsqb']}");
    array_push($home, "天然状态下的体积：V1{$math['eq']}{$math['lpar']}h{$math['div']}6{$math['rpar']}{$math['mul']}{$math['lpar']}S1{$math['add']}4{$math['mul']}S0{$math['add']}S2{$math['rpar']}");
    array_push($home, "松散状态下的体积：V2{$math['eq']}V1{$math['mul']}RS");

    //解释说明
    $info = array();
    array_push($info, "底面的面积 {$math['eq']} 底面长 {$math['mul']} 底面宽 ");
    array_push($info, "顶面的面积 {$math['eq']} 顶面长 {$math['mul']} 顶面宽 ");
    array_push($info, "中部的面积 {$math['eq']} {$math['lsqb']}{$math['lpar']} 底面长 {$math['add']} 顶面长 {$math['rpar']}{$math['div']}2{$math['rsqb']}{$math['mul']}{$math['lsqb']} {$math['lpar']} 底面宽 {$math['add']} 顶面宽 {$math['rpar']}{$math['div']}2{$math['rsqb']}");
    array_push($info, "天然状态下的体积 {$math['eq']} {$math['lpar']} 基坑高 {$math['div']} 6 {$math['rpar']} {$math['mul']} {$math['lpar']} 底面的面积 {$math['add']} 4 {$math['mul']} 中部的面积 {$math['add']} 顶面的面积 {$math['rpar']}");
    array_push($info, "松散状态下的体积 {$math['eq']} 天然状态下的体积 {$math['mul']} 土的可松性系数");

    //参考链接
    $href = array();
    array_push($href, "参考链接：https://baike.baidu.com/item/拟柱体/2126117?fr=aladdin");
    
    know($know);
    ends($ends);
    home($home);
    step($step);
    info($info);
    href($href); 
}
?>
<?php include ROOT.'/assets/php/foot.php';
//写下笔记
$note = array();
//note($note);
?>