CAL II project - Graph plotting online

CAL II project - Graph plotting online - Khoa Phan Calculus...

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Khoa Phan Calculus II – MTWR, 9.00 AM – 12.15 PM Professor Chuen Huang Online Function Grapher Written entirely in JavaScript By Walter Zorn How to Use Go to website: http://www.walterzorn.com/grapher/grapher_e.htm 1
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Khoa Phan Calculus II – MTWR, 9.00 AM – 12.15 PM Professor Chuen Huang Enter functions in standard mathematical notation, using x as independent variable. As evident from the examples, arguments to helper functions must be enclosed into parentheses (or braces or brackets). Grouping symbols such as parentheses, and helper functions may be arbitrarily deeply nested. Examples: cos[atan(5x)^4] or sqrt{16*[1-sec(x)^2/4]} The function plotter engine follows the common rules of math. Notation and order of operation; for example, expressions inside parentheses have increased precedence, * and / have higher precedence than + and -, etc… In case no grouping symbols are used, 2*x-3/x evaluates as if it were (2*x) - (3/x) . Since horizontal fraction lines aren't available to clearly mark off fraction expressions composed by sub-expressions, it is recommended to insert numerator and denominator each completely into parentheses (or brackets or braces). For example, type in pi-(5-x)/(3x)*acoth(x) instead of pi-5-x/3x*acoth(x) which otherwise would evaluate to pi-5-(x/3)*x*acoth(x) . Upper and lower case may be arbitrarily used and mixed, even for predefined constants. Spaces may be used for clarity as you wish, but neither help nor harm; the program engine ignores them. Just typing the function in the “Function f(x)” cell and then click on “Plot Graph” button and then you will have the function’s graph showed in the cell below. When you want to clear the graph and start plotting another one, click on “Delete graphs” button. Range of x (x min to x max) should not extend beyond minus 10
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CAL II project - Graph plotting online - Khoa Phan Calculus...

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