Error Functions, Dawson’s and Fresnel Integrals - 7.17 Inverse Error Functions

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7.17#Ex1 y = inverf x 𝑦 inverse-error-function 𝑥 {\displaystyle{\displaystyle y=\operatorname{inverf}x}}
y = \inverf@@{x}

Error
y == InverseErf[x]
Missing Macro Error Failure -
Failed [6 / 18]
Result: -1.9769362762044698
Test Values: {Rule[x, 0.5], Rule[y, -1.5]}

Result: 1.0230637237955302
Test Values: {Rule[x, 0.5], Rule[y, 1.5]}

... skip entries to safe data
7.17#Ex2 y = inverfc x 𝑦 inverse-complementary-error-function 𝑥 {\displaystyle{\displaystyle y=\operatorname{inverfc}x}}
y = \inverfc@@{x}

Error
y == InverseErfc[x]
Missing Macro Error Failure -
Failed [18 / 18]
Result: -1.02306372379553
Test Values: {Rule[x, 1.5], Rule[y, -1.5]}

Result: 1.97693627620447
Test Values: {Rule[x, 1.5], Rule[y, 1.5]}

... skip entries to safe data