Wolfram Alphaで初等数学

A few examples of what you can ask Wolfram

ARITHMETIC »

計算

125 + 375

1.05 * 12,000

7^3

平方根を求める

sqrt 1801

FRACTIONS »

分数の加算

1/6 + 5/12 + 3/4

分数の乗算

3/8 * 2/7

複雑な計算

1/4 * (4 - 1/2)

PERCENTAGES »

分数を割合に

convert 1/6 to percent

分量の割合

30% of 8 miles

割引の計算

$29.95 - 15%

PLACE VALUE »

位取り

place values of 6135

ある値の数桁目

value of the digit 3 in 23904

MATHEMATICAL WORD PROBLEMS »

文章問題を解く

Rachel has 17 apples. She gives 9 to Sarah. How many apples does Rachel have now?

Rhonda has 12 marbles more than Douglas. Douglas has 6 marbles more than Bertha. Rhonda has twice as many marbles as Bertha has. How many marbles does Douglas have?

数学の道具箱 Mathematica 基本編 Kindle版