2013年12月26日 星期四

超簡易計算機

輸入任意算式(會先乘除後加減),然後按計算或enter:


結果:



超簡易計算機 v.0.02
本工具是用javascript 的eval,所以可以使用以下函數:
Math.abs(x)Returns the absolute value of x
Math.acos(x)Returns the arccosine of x, in radians
Math.asin(x)Returns the arcsine of x, in radians
Math.atan(x)Returns the arctangent of x as a numeric value between -PI/2 and PI/2 radians
Math.atan2(y,x)Returns the arctangent of the quotient of its arguments
Math.ceil(x)Returns x, rounded upwards to the nearest integer
Math.cos(x)Returns the cosine of x (x is in radians)
Math.exp(x)Returns the value of Ex
Math.floor(x)Returns x, rounded downwards to the nearest integer
Math.log(x)Returns the natural logarithm (base E) of x
Math.max(x,y,z,...,n)Returns the number with the highest value
Math.min(x,y,z,...,n)Returns the number with the lowest value
Math.pow(x,y)Returns the value of x to the power of y
Math.random()Returns a random number between 0 and 1
Math.round(x)Rounds x to the nearest integer
Math.sin(x)Returns the sine of x (x is in radians)
Math.sqrt(x)Returns the square root of x
Math.tan(x)Returns the tangent of an angle

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